Bug 2068945 - Remove legacy histogram fallback for api_notify r=janerik

Differential Revision: https://phabricator.services.mozilla.com/D323220

dom/push/metrics.yaml

@@ -74,9 +74,6 @@ web_push:
     description: >
       Number of push messages that were successfully decrypted and delivered to
       a ServiceWorker when required.
-
-      This metric was generated to correspond to the Legacy Telemetry count
-      histogram PUSH_API_NOTIFY.
     bugs:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1429286
     data_reviews:
@@ -84,7 +81,6 @@ web_push:
     notification_emails:
       - push@mozilla.com
     expires: never
-    telemetry_mirror: h#PUSH_API_NOTIFY
 
   declarative:
     type: counter

toolkit/components/telemetry/Histograms.json

@@ -3237,16 +3237,6 @@
     "releaseChannelCollection": "opt-out",
     "description": "Number of mobile devices associated with this Sync account. Recorded each time Sync successfully completes the 'clients' engine."
   },
-  "PUSH_API_NOTIFY": {
-    "record_in_processes": ["main", "content"],
-    "products": ["firefox", "fennec"],
-    "releaseChannelCollection": "opt-out",
-    "alert_emails": ["push@mozilla.com"],
-    "bug_numbers": [1429286],
-    "expires_in_version": "never",
-    "kind": "count",
-    "description": "Number of push messages that were successfully decrypted and delivered to a ServiceWorker."
-  },
   "GFX_CONTENT_FAILED_TO_ACQUIRE_DEVICE": {
     "record_in_processes": ["main", "content"],
     "products": ["firefox", "fennec"],

toolkit/components/telemetry/histogram-allowlists.json

@@ -203,7 +203,6 @@
     "MEDIA_CODEC_USED",
     "PERMISSIONS_SQL_CORRUPTED",
     "PROCESS_CRASH_SUBMIT_ATTEMPT",
-    "PUSH_API_NOTIFY",
     "SANDBOX_REJECTED_SYSCALLS",
     "SEARCH_COUNTS",
     "SERVICE_WORKER_SPAWN_GETS_QUEUED",