Remove the FF ci_idempotent_pipeline_process_worker

It's enabled by default since 14.3

Changelog: other

app/workers/pipeline_process_worker.rb

@@ -14,7 +14,7 @@ class PipelineProcessWorker
   loggable_arguments 1
 
   idempotent!
-  deduplicate :until_executing, feature_flag: :ci_idempotent_pipeline_process_worker
+  deduplicate :until_executing
 
   # rubocop: disable CodeReuse/ActiveRecord
   def perform(pipeline_id)

config/feature_flags/development/ci_idempotent_pipeline_process_worker.yml

----
-name: ci_idempotent_pipeline_process_worker
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/62410
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/332963
-milestone: '14.0'
-type: development
-group: group::pipeline authoring
-default_enabled: true

spec/workers/pipeline_process_worker_spec.rb

@@ -29,16 +29,6 @@ RSpec.describe PipelineProcessWorker do
     end
   end
 
-  context 'when the FF ci_idempotent_pipeline_process_worker is disabled' do
-    before do
-      stub_feature_flags(ci_idempotent_pipeline_process_worker: false)
-    end
-
-    it 'is not deduplicated' do
-      expect(described_class).not_to be_deduplication_enabled
-    end
-  end
-
   describe '#perform' do
     context 'when pipeline exists' do
       it 'processes pipeline' do