Bug 1754652 - Remove WINDOW_REMOTE_SUBFRAMES_ENABLED_STATUS telemetry. r=nika

Differential Revision: https://phabricator.services.mozilla.com/D138472

browser/base/content/browser.js

@@ -2353,8 +2353,6 @@ var gBrowserInit = {
       NewTabPagePreloading.maybeCreatePreloadedBrowser(window);
     });
 
-    scheduleIdleTask(reportRemoteSubframesEnabledTelemetry);
-
     scheduleIdleTask(() => {
       gGfxUtils.init();
     });
@@ -9921,16 +9919,3 @@ var ConfirmationHint = {
     }
   },
 };
-
-function reportRemoteSubframesEnabledTelemetry() {
-  let categoryLabel = gFissionBrowser ? "Enabled" : "Disabled";
-  if (gFissionBrowser == Services.appinfo.fissionAutostart) {
-    categoryLabel += "ByAutostart";
-  } else {
-    categoryLabel += "ByUser";
-  }
-
-  Services.telemetry
-    .getHistogramById("WINDOW_REMOTE_SUBFRAMES_ENABLED_STATUS")
-    .add(categoryLabel);
-}

toolkit/components/telemetry/Histograms.json

@@ -16406,21 +16406,6 @@
     "n_buckets": 50,
     "description": "Time in milliseconds spent in the layout system per Refresh Driver tick."
   },
-  "WINDOW_REMOTE_SUBFRAMES_ENABLED_STATUS": {
-    "record_in_processes": ["main"],
-    "products": ["firefox"],
-    "alert_emails": ["nika@mozilla.com"],
-    "expires_in_version": "100",
-    "kind": "categorical",
-    "labels": [
-      "EnabledByAutostart",
-      "EnabledByUser",
-      "DisabledByAutostart",
-      "DisabledByUser"
-    ],
-    "bug_numbers": [1602903, 1656132, 1690329, 1730263],
-    "description": "Fission enabled status of individual windows in fission.autostart and non-fission.autostart profiles"
-  },
   "COOKIE_PURGING_ORIGINS_PURGED": {
     "expires_in_version": "never",
     "record_in_processes": ["main"],