Bug 1564241 - Remove the contentblocking.exceptions scalar probe since it's expired. a=permafail-fix

Differential Revision: https://phabricator.services.mozilla.com//D37330

--HG--
extra : amend_source : 2640c821301ccbfe21e301c22dc4d51a5294ab97

browser/base/content/test/trackingUI/browser_trackingUI_telemetry.js

@@ -41,10 +41,6 @@ add_task(async function setup() {
     .getHistogramById("TRACKING_PROTECTION_ENABLED")
     .snapshot().values;
   is(enabledCounts[0], 1, "TP was not enabled on start up");
-
-  let scalars = Services.telemetry.getSnapshotForScalars("main", false).parent;
-
-  is(scalars["contentblocking.exceptions"], 0, "no CB exceptions at startup");
 });
 
 add_task(async function testShieldHistogram() {

browser/components/BrowserGlue.jsm

@@ -1736,14 +1736,6 @@ BrowserGlue.prototype = {
     );
     Services.telemetry.getHistogramById("COOKIE_BEHAVIOR").add(cookieBehavior);
 
-    let exceptions = 0;
-    for (let permission of Services.perms.enumerator) {
-      if (permission.type == "trackingprotection") {
-        exceptions++;
-      }
-    }
-    Services.telemetry.scalarSet("contentblocking.exceptions", exceptions);
-
     let fpEnabled = Services.prefs.getBoolPref(
       "privacy.trackingprotection.fingerprinting.enabled"
     );

toolkit/components/telemetry/Scalars.yaml

@@ -488,20 +488,6 @@ security:
       - main
 
 contentblocking:
-  exceptions:
-    bug_numbers:
-      - 1484251
-    description: >
-      How many tracking protection/content blocking exceptions a user has at startup.
-    expires: "70"
-    kind: uint
-    notification_emails:
-      - jhofmann@mozilla.com
-      - pdol@mozilla.com
-      - seceng-telemetry@mozilla.com
-    release_channel_collection: opt-out
-    record_in_processes:
-      - main
   cryptomining_blocking_enabled:
     bug_numbers:
       - 1522919