Bug 1402457 - Disable the TC periodic-update cron job due to more work being scheduled than expected. r=Callek, a=me

.cron.yml

@@ -105,10 +105,4 @@ jobs:
           target-tasks-method: nightly_file_update
       run-on-projects:
           - mozilla-central
-      when:
+      when: []  # don't run for now due to unforeseen issues
-          by-project:
-              # No default branch
-              mozilla-central:
-                  # Buildbot start time is 10:02am UTC, until we are able to
-                  # disable buildbot scheduling, use +12h
-                  - {hour: 22, minute: 0}