Remove the container_registry_expiration_policies_caching feature flag

Enabling caching for cleanup policies as described in
https://gitlab.com/gitlab-org/gitlab/-/issues/339129

Changelog: other

app/services/projects/container_repository/cleanup_tags_service.rb

@@ -146,8 +146,7 @@ module Projects
 
       def caching_enabled?
         container_expiration_policy &&
-          older_than.present? &&
-          Feature.enabled?(:container_registry_expiration_policies_caching, @project)
+          older_than.present?
       end
 
       def throttling_enabled?

config/feature_flags/development/container_registry_expiration_policies_caching.yml

----
-name: container_registry_expiration_policies_caching
-introduced_by_url:
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/340606
-milestone: '14.3'
-type: development
-group: group::package
-default_enabled: false

spec/services/projects/container_repository/cleanup_tags_service_spec.rb

@@ -41,7 +41,6 @@ RSpec.describe Projects::ContainerRepository::CleanupTagsService, :clean_gitlab_
   describe '#execute' do
     subject { service.execute }
 
-    shared_examples 'reading and removing tags' do |caching_enabled: true|
     context 'when no params are specified' do
       let(:params) { {} }
 
@@ -271,7 +270,7 @@ RSpec.describe Projects::ContainerRepository::CleanupTagsService, :clean_gitlab_
         it 'succeeds without a user' do
           expect_delete(%w(Bb Ba C), container_expiration_policy: true)
 
-            caching_enabled ? expect_caching : expect_no_caching
+          expect_caching
 
           is_expected.to eq(expected_service_response(deleted: %w(Bb Ba C), before_delete_size: 3))
         end
@@ -354,9 +353,8 @@ RSpec.describe Projects::ContainerRepository::CleanupTagsService, :clean_gitlab_
         )
       end
     end
-    end
 
-    context 'caching' do
+    context 'caching', :freeze_time do
       let(:params) do
         {
           'name_regex_delete' => '.*',
@@ -381,17 +379,12 @@ RSpec.describe Projects::ContainerRepository::CleanupTagsService, :clean_gitlab_
 
       before do
         expect_delete(%w(Bb Ba C), container_expiration_policy: true)
-        travel_to(Time.zone.local(2021, 9, 2, 12, 0, 0))
         # We froze time so we need to set the created_at stubs again
         stub_digest_config('sha256:configA', 1.hour.ago)
         stub_digest_config('sha256:configB', 5.days.ago)
         stub_digest_config('sha256:configC', 1.month.ago)
       end
 
-      after do
-        travel_back
-      end
-
       it 'caches the created_at values' do
         ::Gitlab::Redis::Cache.with do |redis|
           expect_mget(redis, tags_and_created_ats.keys)
@@ -450,32 +443,6 @@ RSpec.describe Projects::ContainerRepository::CleanupTagsService, :clean_gitlab_
         DateTime.rfc3339(date_time.rfc3339).rfc3339
       end
     end
-
-    context 'with container_registry_expiration_policies_caching enabled for the project' do
-      before do
-        stub_feature_flags(container_registry_expiration_policies_caching: project)
-      end
-
-      it_behaves_like 'reading and removing tags', caching_enabled: true
-    end
-
-    context 'with container_registry_expiration_policies_caching disabled' do
-      before do
-        stub_feature_flags(container_registry_expiration_policies_caching: false)
-      end
-
-      it_behaves_like 'reading and removing tags', caching_enabled: false
-    end
-
-    context 'with container_registry_expiration_policies_caching not enabled for the project' do
-      let_it_be(:another_project) { create(:project) }
-
-      before do
-        stub_feature_flags(container_registry_expiration_policies_caching: another_project)
-      end
-
-      it_behaves_like 'reading and removing tags', caching_enabled: false
-    end
   end
 
   private