Return 202 for destory. Remove []. Remove def pipeline_schedules from helper.

lib/api/pipeline_schedules.rb

@@ -114,20 +114,16 @@ module API
 
         not_found!('PipelineSchedule') unless pipeline_schedule
 
+        status :accepted
         present pipeline_schedule.destroy, with: Entities::PipelineScheduleDetails
       end
     end
 
     helpers do
-      def pipeline_schedules
-        @pipeline_schedules ||=
-          user_project.pipeline_schedules.preload([:owner, :last_pipeline])
-      end
-
       def pipeline_schedule
         @pipeline_schedule ||=
           user_project.pipeline_schedules
-                      .preload([:owner, :last_pipeline])
+                      .preload(:owner, :last_pipeline)
                       .find_by(id: params.delete(:pipeline_schedule_id))
       end
     end

spec/requests/api/pipeline_schedules_spec.rb

@@ -267,7 +267,7 @@ describe API::PipelineSchedules do
           delete api("/projects/#{project.id}/pipeline_schedules/#{pipeline_schedule.id}", master)
         end.to change { project.pipeline_schedules.count }.by(-1)
 
-        expect(response).to have_http_status(:ok)
+        expect(response).to have_http_status(:accepted)
         expect(response).to match_response_schema('pipeline_schedule')
       end