diff --git a/hal/Hal.cpp b/hal/Hal.cpp
index c8e25690bc61..4a25f47b13f5 100644
--- a/hal/Hal.cpp
+++ b/hal/Hal.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/Hal.h b/hal/Hal.h
index 705dadff188b..1febbe892215 100644
--- a/hal/Hal.h
+++ b/hal/Hal.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalBatteryInformation.h b/hal/HalBatteryInformation.h
index 8e992ef442e5..121f1cf8b42d 100644
--- a/hal/HalBatteryInformation.h
+++ b/hal/HalBatteryInformation.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalIPCUtils.h b/hal/HalIPCUtils.h
index 5a3f15e5733a..fe3b7a9b5ff5 100644
--- a/hal/HalIPCUtils.h
+++ b/hal/HalIPCUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalImpl.h b/hal/HalImpl.h
index eed249281231..52e95e2c75ae 100644
--- a/hal/HalImpl.h
+++ b/hal/HalImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalInternal.h b/hal/HalInternal.h
index a26e0a985a29..2c82aa1b52c1 100644
--- a/hal/HalInternal.h
+++ b/hal/HalInternal.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalLog.h b/hal/HalLog.h
index fcf9c5edfa79..f980c711c5bc 100644
--- a/hal/HalLog.h
+++ b/hal/HalLog.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalNetworkInformation.h b/hal/HalNetworkInformation.h
index 9c6b334ddd9e..eb7dfe7b27f4 100644
--- a/hal/HalNetworkInformation.h
+++ b/hal/HalNetworkInformation.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalSandbox.h b/hal/HalSandbox.h
index a4be721ea164..f8bc62a8e14f 100644
--- a/hal/HalSandbox.h
+++ b/hal/HalSandbox.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalScreenConfiguration.h b/hal/HalScreenConfiguration.h
index 9a577884b63d..1b4634736bc4 100644
--- a/hal/HalScreenConfiguration.h
+++ b/hal/HalScreenConfiguration.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalSensor.h b/hal/HalSensor.h
index 1fdc55a14da3..73fd26594789 100644
--- a/hal/HalSensor.h
+++ b/hal/HalSensor.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalTypes.h b/hal/HalTypes.h
index dbc8b141d6b4..cca4910c8233 100644
--- a/hal/HalTypes.h
+++ b/hal/HalTypes.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalWakeLock.cpp b/hal/HalWakeLock.cpp
index 7676061b7222..26e88979cf8a 100644
--- a/hal/HalWakeLock.cpp
+++ b/hal/HalWakeLock.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalWakeLock.h b/hal/HalWakeLock.h
index 3daa7c840563..3eb2aeef4b13 100644
--- a/hal/HalWakeLock.h
+++ b/hal/HalWakeLock.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalWakeLockInformation.h b/hal/HalWakeLockInformation.h
index 2f52b1810e6e..4552fd9bc470 100644
--- a/hal/HalWakeLockInformation.h
+++ b/hal/HalWakeLockInformation.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/HalWakeLockInternal.h b/hal/HalWakeLockInternal.h
index f1bdb68316dc..fe48357151a3 100644
--- a/hal/HalWakeLockInternal.h
+++ b/hal/HalWakeLockInternal.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/WindowIdentifier.cpp b/hal/WindowIdentifier.cpp
index dc108016910f..8a261410a147 100644
--- a/hal/WindowIdentifier.cpp
+++ b/hal/WindowIdentifier.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/WindowIdentifier.h b/hal/WindowIdentifier.h
index f05b008a8297..d377a3cf7d46 100644
--- a/hal/WindowIdentifier.h
+++ b/hal/WindowIdentifier.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/android/AndroidHal.cpp b/hal/android/AndroidHal.cpp
index 86142e050edb..cf584f916d31 100644
--- a/hal/android/AndroidHal.cpp
+++ b/hal/android/AndroidHal.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/android/AndroidHeterogeneousCpuInfo.cpp b/hal/android/AndroidHeterogeneousCpuInfo.cpp
index b2e1fd8e0cce..8c34e5d2e75c 100644
--- a/hal/android/AndroidHeterogeneousCpuInfo.cpp
+++ b/hal/android/AndroidHeterogeneousCpuInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/hal/android/AndroidPerformanceHintManager.cpp b/hal/android/AndroidPerformanceHintManager.cpp
index 14314fbfd931..94b7f3339feb 100644
--- a/hal/android/AndroidPerformanceHintManager.cpp
+++ b/hal/android/AndroidPerformanceHintManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/hal/android/AndroidProcessPriority.cpp b/hal/android/AndroidProcessPriority.cpp
index aab2bf50efdd..0f3d7ce08765 100644
--- a/hal/android/AndroidProcessPriority.cpp
+++ b/hal/android/AndroidProcessPriority.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/hal/android/AndroidSensor.cpp b/hal/android/AndroidSensor.cpp
index 59db64a1d304..18639fdf255d 100644
--- a/hal/android/AndroidSensor.cpp
+++ b/hal/android/AndroidSensor.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/cocoa/CocoaBattery.cpp b/hal/cocoa/CocoaBattery.cpp
index 9496c02c2c7d..50e2c1ee4658 100644
--- a/hal/cocoa/CocoaBattery.cpp
+++ b/hal/cocoa/CocoaBattery.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim set: sw=2 ts=2 et lcs=trail\:.,tab\:>~ : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/hal/cocoa/CocoaHeterogeneousCpuInfo.cpp b/hal/cocoa/CocoaHeterogeneousCpuInfo.cpp
index 5334ec888046..44ebc697168b 100644
--- a/hal/cocoa/CocoaHeterogeneousCpuInfo.cpp
+++ b/hal/cocoa/CocoaHeterogeneousCpuInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackBattery.cpp b/hal/fallback/FallbackBattery.cpp
index b4f2fe105a09..25ff38788bbd 100644
--- a/hal/fallback/FallbackBattery.cpp
+++ b/hal/fallback/FallbackBattery.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackHeterogeneousCpuInfo.cpp b/hal/fallback/FallbackHeterogeneousCpuInfo.cpp
index 649200e35ce8..87580f1ff5e5 100644
--- a/hal/fallback/FallbackHeterogeneousCpuInfo.cpp
+++ b/hal/fallback/FallbackHeterogeneousCpuInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackNetwork.cpp b/hal/fallback/FallbackNetwork.cpp
index d944b3a579dd..7148e2bc9b9b 100644
--- a/hal/fallback/FallbackNetwork.cpp
+++ b/hal/fallback/FallbackNetwork.cpp
@@ -1,6 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * vim: sw=2 ts=8 et :
- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackPerformanceHintManager.cpp b/hal/fallback/FallbackPerformanceHintManager.cpp
index 768665011366..8ade79e6dfab 100644
--- a/hal/fallback/FallbackPerformanceHintManager.cpp
+++ b/hal/fallback/FallbackPerformanceHintManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackSensor.cpp b/hal/fallback/FallbackSensor.cpp
index 2ce51904b736..80a34142cea9 100644
--- a/hal/fallback/FallbackSensor.cpp
+++ b/hal/fallback/FallbackSensor.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/fallback/FallbackVibration.cpp b/hal/fallback/FallbackVibration.cpp
index f3b0302d03d9..f7892ac988e0 100644
--- a/hal/fallback/FallbackVibration.cpp
+++ b/hal/fallback/FallbackVibration.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/linux/UPowerClient.cpp b/hal/linux/UPowerClient.cpp
index ba7d5de7d64b..a0e610d0d1a9 100644
--- a/hal/linux/UPowerClient.cpp
+++ b/hal/linux/UPowerClient.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/moz.build b/hal/moz.build
index 23c20f7593e8..2975ee3f35cf 100644
--- a/hal/moz.build
+++ b/hal/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/hal/sandbox/PHal.ipdl b/hal/sandbox/PHal.ipdl
index 2b8ba990fbab..b3bd85fa3d53 100644
--- a/hal/sandbox/PHal.ipdl
+++ b/hal/sandbox/PHal.ipdl
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/sandbox/SandboxHal.cpp b/hal/sandbox/SandboxHal.cpp
index 714cab094191..4fb2958d767c 100644
--- a/hal/sandbox/SandboxHal.cpp
+++ b/hal/sandbox/SandboxHal.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/sandbox/SandboxHal.h b/hal/sandbox/SandboxHal.h
index b735e4da78fb..6e778d6d10ba 100644
--- a/hal/sandbox/SandboxHal.h
+++ b/hal/sandbox/SandboxHal.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/windows/WindowsBattery.cpp b/hal/windows/WindowsBattery.cpp
index fba786c8a2bc..f870b75ef2d8 100644
--- a/hal/windows/WindowsBattery.cpp
+++ b/hal/windows/WindowsBattery.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/hal/windows/WindowsHeterogeneousCpuInfo.cpp b/hal/windows/WindowsHeterogeneousCpuInfo.cpp
index 0ac5652328c9..877c782132b0 100644
--- a/hal/windows/WindowsHeterogeneousCpuInfo.cpp
+++ b/hal/windows/WindowsHeterogeneousCpuInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */