Remove :filter_bar_iterations feature flag

This enables filtering by iteration in issues and boards

doc/user/search/index.md

@@ -44,6 +44,7 @@ groups:
    - Author
    - Assignee
    - [Milestone](../project/milestones/index.md)
+   - [Iteration](../group/iterations/index.md) ([introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/118742) in [GitLab Starter](https://about.gitlab.com/pricing/) 13.6)
    - Release
    - [Label](../project/labels.md)
    - My-reaction

ee/app/helpers/ee/search_helper.rb

@@ -146,7 +146,7 @@ module EE
 
       context = @project.presence || @group.presence
 
-      context && ::Feature.enabled?(:filter_bar_iterations, context) && context.feature_available?(:iterations)
+      context&.feature_available?(:iterations)
     end
 
     def gitlab_com_snippet_db_search?

ee/changelogs/unreleased/282501-remove-iterations-filter-feature-flag.yml

+---
+title: Allow filtering by iteration in issue lists and issue boards
+merge_request: 47766
+author:
+type: added

ee/config/feature_flags/development/filter_bar_iterations.yml

----
-name: filter_bar_iterations
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/44690
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/118742
-milestone: '13.6'
-type: development
-group: group::project management
-default_enabled: false

ee/spec/helpers/search_helper_spec.rb

@@ -80,16 +80,6 @@ RSpec.describe SearchHelper do
         it 'does not include iterations endpoint in dashboard context' do
           expect(options[:data]['iterations-endpoint']).to be(nil)
         end
-
-        context 'when feature flag is disabled' do
-          before do
-            stub_feature_flags(filter_bar_iterations: false)
-          end
-
-          it 'does not include iterations endpoint' do
-            expect(options[:data]['iterations-endpoint']).to be(nil)
-          end
-        end
       end
 
       context 'when iterations are not available' do