Remove unnecessary override

app/workers/projects/git_garbage_collect_worker.rb

@@ -7,22 +7,6 @@ module Projects
 
     private
 
-    # At the moment this was added, the default key was like this.
-    # With the addition of wikis to housekeeping, this will bring a
-    # problem because the wiki for project 1 will have the same
-    # lease key as project 1.
-    #
-    # In the `GitGarbageCollectMethods` we namespaced the resource,
-    # giving us the option to have different resources. Nevertheless,
-    # we kept this override in order for backward compatibility and avoid
-    # starting all projects from scratch.
-    #
-    # See https://gitlab.com/gitlab-org/gitlab/-/issues/299903
-    override :default_lease_key
-    def default_lease_key(task, resource)
-      "git_gc:#{task}:#{resource.id}"
-    end
-
     override :find_resource
     def find_resource(id)
       Project.find(id)

spec/workers/projects/git_garbage_collect_worker_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe Projects::GitGarbageCollectWorker do
     let(:resource) { project }
     let(:statistics_service_klass) { Projects::UpdateStatisticsService }
     let(:statistics_keys) { [:repository_size, :lfs_objects_size] }
-    let(:expected_default_lease) { "#{resource.id}" }
+    let(:expected_default_lease) { "projects:#{resource.id}" }
   end
 
   context 'when is able to get the lease' do