diff --git a/config/feature_flags/development/advanced_search_multi_project_select.yml b/config/feature_flags/development/advanced_search_multi_project_select.yml
deleted file mode 100644
index 8f74c8990fa6fb6dcf56de630c3322734fbb5240..0000000000000000000000000000000000000000
--- a/config/feature_flags/development/advanced_search_multi_project_select.yml
+++ /dev/null
@@ -1,8 +0,0 @@
----
-name: advanced_search_multi_project_select
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/62606
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/333011
-milestone: '14.4'
-type: development
-group: group::global search
-default_enabled: false
diff --git a/ee/app/services/ee/search_service.rb b/ee/app/services/ee/search_service.rb
index ef2a691cc88ba48122d29cef98f2a43f83819f40..de21065815f196532809025fdd7bd3b9ff62c4ac 100644
--- a/ee/app/services/ee/search_service.rb
+++ b/ee/app/services/ee/search_service.rb
@@ -28,7 +28,6 @@ def search_type
     override :projects
     def projects
       return unless params[:project_ids].present? && params[:project_ids].is_a?(String)
-      return unless ::Feature.enabled?(:advanced_search_multi_project_select, current_user)
 
       project_ids = params[:project_ids].split(',')
       the_projects = ::Project.where(id: project_ids)
diff --git a/ee/spec/services/search_service_spec.rb b/ee/spec/services/search_service_spec.rb
index 1361886cdcfe6eff9b71fb464f7468d46ec43b1e..c86ae6a195c98f6bd21ae015b09a4157babab6b2 100644
--- a/ee/spec/services/search_service_spec.rb
+++ b/ee/spec/services/search_service_spec.rb
@@ -77,19 +77,6 @@
         expect(projects).to be_nil
       end
     end
-
-    context 'when the advanced_search_multi_project_select feature is not enabled' do
-      before do
-        stub_feature_flags(advanced_search_multi_project_select: false)
-      end
-
-      it 'returns nil' do
-        project_ids = accessible_project.id.to_s
-        projects = described_class.new(user, project_ids: project_ids).projects
-
-        expect(projects).to be_nil
-      end
-    end
   end
 
   describe '#use_elasticsearch?' do