Delay worker execution for workers utilizing LB

Changelog: added
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/62374

app/workers/concerns/application_worker.rb

@@ -55,7 +55,7 @@ module ApplicationWorker
     def perform_async(*args)
       # Worker execution for workers with data_consistency set to :delayed or :sticky
       # will be delayed to give replication enough time to complete
-      if utilizes_load_balancing_capabilities? && data_consistency_delayed_execution_feature_flag_enabled?
+      if utilizes_load_balancing_capabilities?
         perform_in(delay_interval, *args)
       else
         super
@@ -125,10 +125,6 @@ module ApplicationWorker
 
     protected
 
-    def data_consistency_delayed_execution_feature_flag_enabled?
-      Feature.enabled?(:data_consistency_delayed_execution, default_enabled: :yaml)
-    end
-
     def delay_interval
       DEFAULT_DELAY_INTERVAL.seconds
     end

config/feature_flags/development/data_consistency_delayed_execution.yml

----
-name: data_consistency_delayed_execution
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61501
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/331110
-milestone: '14.0'
-type: development
-group: group::memory
-default_enabled: false

spec/workers/concerns/application_worker_spec.rb

@@ -182,24 +182,6 @@ RSpec.describe ApplicationWorker do
         worker.data_consistency(data_consistency)
       end
 
-      context 'when data_consistency_delayed_execution feature flag is disabled' do
-        before do
-          stub_feature_flags(data_consistency_delayed_execution: false)
-        end
-
-        it 'data_consistency_delayed_execution_feature_flag_enabled? should return false' do
-          expect(worker).to receive(:data_consistency_delayed_execution_feature_flag_enabled?).and_return(false)
-
-          worker.perform_async
-        end
-
-        it 'does not call perform_in' do
-          expect(worker).not_to receive(:perform_in)
-
-          worker.perform_async
-        end
-      end
-
       it 'call perform_in' do
         expect(worker).to receive(:perform_in).with(described_class::DEFAULT_DELAY_INTERVAL.seconds, 123)