Merge branch 'enable_confid_query' into 'master'

Remove confidential_epics_query feature flag

Closes #213075

See merge request gitlab-org/gitlab!35235

ee/app/finders/epics_finder.rb

@@ -181,7 +181,6 @@ class EpicsFinder < IssuableFinder
   # rubocop: enable CodeReuse/ActiveRecord
 
   def with_confidentiality_access_check(epics, groups)
-    return epics unless Feature.enabled?(:confidential_epics_query, group)
     return epics if can_read_all_epics_in_related_groups?(groups)
 
     epics.not_confidential_or_in_groups(groups_with_confidential_access(groups))

ee/spec/finders/epics_finder_spec.rb

@@ -389,16 +389,6 @@ RSpec.describe EpicsFinder do
               expect(subject).to match_array([base_epic2, public_epic1, public_epic2])
             end
           end
-
-          context 'when confidential_epics_query is disabled' do
-            before do
-              stub_feature_flags(confidential_epics_query: false)
-            end
-
-            it 'returns also confidential epics' do
-              expect(subject).to match_array([base_epic1, base_epic2, public_epic1, public_epic2])
-            end
-          end
         end
 
         context 'with negated labels' do