Use specialized worker to refresh authorizations on group-share removal

With this change, we will be using a specialized
worker to refresh authorizations whenever a
project-group share is removed.

Changelog: performance

app/services/projects/group_links/destroy_service.rb

@@ -13,7 +13,6 @@ module Projects
         end
 
         group_link.destroy.tap do |link|
-          if Feature.enabled?(:use_specialized_worker_for_project_auth_recalculation)
           refresh_project_authorizations_asynchronously(link.project)
 
           # Until we compare the inconsistency rates of the new specialized worker and
@@ -23,9 +22,6 @@ module Projects
             blocking: false,
             priority: UserProjectAccessChangedService::LOW_PRIORITY
           )
-          else
-            link.group.refresh_members_authorized_projects
-          end
         end
       end
 

config/feature_flags/development/use_specialized_worker_for_project_auth_recalculation.yml

----
-name: use_specialized_worker_for_project_auth_recalculation
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60904
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/331073
-milestone: '14.0'
-type: development
-group: group::access
-default_enabled: false

spec/services/projects/group_links/destroy_service_spec.rb

@@ -20,11 +20,6 @@ RSpec.describe Projects::GroupLinks::DestroyService, '#execute' do
       group.add_maintainer(user)
     end
 
-    context 'when the feature flag `use_specialized_worker_for_project_auth_recalculation` is enabled' do
-      before do
-        stub_feature_flags(use_specialized_worker_for_project_auth_recalculation: true)
-      end
-
     it 'calls AuthorizedProjectUpdate::ProjectRecalculateWorker to update project authorizations' do
       expect(AuthorizedProjectUpdate::ProjectRecalculateWorker)
         .to receive(:perform_async).with(group_link.project.id)
@@ -50,27 +45,6 @@ RSpec.describe Projects::GroupLinks::DestroyService, '#execute' do
     end
   end
 
-    context 'when the feature flag `use_specialized_worker_for_project_auth_recalculation` is disabled' do
-      before do
-        stub_feature_flags(use_specialized_worker_for_project_auth_recalculation: false)
-      end
-
-      it 'calls UserProjectAccessChangedService to update project authorizations' do
-        expect_next_instance_of(UserProjectAccessChangedService, [user.id]) do |service|
-          expect(service).to receive(:execute)
-        end
-
-        subject.execute(group_link)
-      end
-
-      it 'updates project authorizations of users who had access to the project via the group share' do
-        expect { subject.execute(group_link) }.to(
-          change { Ability.allowed?(user, :read_project, project) }
-            .from(true).to(false))
-      end
-    end
-  end
-
   it 'returns false if group_link is blank' do
     expect { subject.execute(nil) }.not_to change { project.project_group_links.count }
   end