Removes the realtime_mr_status_change feature flag

app/assets/javascripts/merge_request.js

...s/javascripts/merge_requests/components/sticky_header.vue

...e_merge_request_widget/components/approvals/approvals.vue

...merge_request_widget/components/states/ready_to_merge.vue

...avascripts/vue_merge_request_widget/mr_widget_options.vue

app/controllers/projects/merge_requests_controller.rb

app/graphql/graphql_triggers.rb

...g/feature_flags/development/realtime_mr_status_change.yml

...end/vue_merge_request_widget/ee_mr_widget_options_spec.js

...rge_request_widget/components/approvals/approvals_spec.js

...ontend/vue_merge_request_widget/mr_widget_options_spec.js

spec/graphql/graphql_triggers_spec.rb