Merge branch '355112-sy-remove-feature-flag' into 'master'

Enable service ping for error tracking features

See merge request gitlab-org/gitlab!83148

config/feature_flags/development/track_error_tracking_activity.yml

----
-name: track_error_tracking_activity
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/82543
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/355112
-milestone: '14.9'
-type: development
-group: group::respond
-default_enabled: false

lib/gitlab/usage_data_counters/known_events/error_tracking.yml

@@ -3,9 +3,7 @@
   category: error_tracking
   redis_slot: error_tracking
   aggregation: weekly
-  feature_flag: track_error_tracking_activity
 - name: error_tracking_view_list
   category: error_tracking
   redis_slot: error_tracking
   aggregation: weekly
-  feature_flag: track_error_tracking_activity