Remove feature flag behind MR's multiple assignees

app/models/project.rb

@@ -690,10 +690,6 @@ class Project < ApplicationRecord
     { scope: :project, status: auto_devops&.enabled || Feature.enabled?(:force_autodevops_on_by_default, self) }
   end
 
-  def multiple_mr_assignees_enabled?
-    Feature.enabled?(:multiple_merge_request_assignees, self)
-  end
-
   def daily_statistics_enabled?
     Feature.enabled?(:project_daily_statistics, self, default_enabled: true)
   end

ee/app/models/ee/merge_request.rb

@@ -76,8 +76,7 @@ module EE
     end
 
     def allows_multiple_assignees?
-      project.multiple_mr_assignees_enabled? &&
-        project.feature_available?(:multiple_merge_request_assignees)
+      project.feature_available?(:multiple_merge_request_assignees)
     end
 
     def supports_weight?

ee/changelogs/unreleased/id-clean-up-mr-assignees.yml

+---
+title: Remove feature flag behind MR's multiple assignees
+merge_request: 14506
+author:
+type: changed

ee/spec/models/merge_request_spec.rb

@@ -48,15 +48,6 @@ describe MergeRequest do
 
       expect(merge_request.allows_multiple_assignees?).to be(true)
     end
-
-    it 'does not allows multiple assignees when licensed and feature flag is disabled' do
-      stub_licensed_features(multiple_merge_request_assignees: true)
-      stub_feature_flags(multiple_merge_request_assignees: false)
-
-      merge_request = build(:merge_request)
-
-      expect(merge_request.allows_multiple_assignees?).to be(false)
-    end
   end
 
   describe 'approval_rules' do