Bug 1648183 - Disable live site testing for 1 day, or otherwise disable telemetry pings r=davehunt

Disabling these unsheriffed tests to determine if they are causing the spikes in new users that telemetry reveals.

Differential Revision: https://phabricator.services.mozilla.com/D81326

.cron.yml

@@ -115,8 +115,7 @@ jobs:
           include-push-tasks: true
       run-on-projects:
           - mozilla-central
-      when:
-          - {weekday: 'Sunday', hour: 5, minute: 0}
+      when: []  # temporarily disabled, Bug 1648183
 
     - name: general-perf-testing
       job:

taskcluster/taskgraph/target_tasks.py

@@ -667,7 +667,7 @@ def target_tasks_general_perf_testing(full_task_graph, parameters, graph_config)
                 return False
             # Select live site tests
             if '-live' in try_name and ('fenix' in try_name or 'chrome-m' in try_name):
-                return _run_live_site()
+                return False  # temporarily disabled, Bug 1648183
             # Select fenix resource usage tests
             if 'fenix' in try_name:
                 if 'raptor-scn-power-idle' in try_name: