message: now send empty response {}
diff: @@ -120,9 +120,7 @@ export class LectureController {
  * @apiSuccess {Boolean} result Confirmation of deletion.
  *
  * @apiSuccessExample {json} Success-Response:
  - * {
  - * "result": true
  - * }
  + * {}
  */
  @Authorized(['teacher', 'admin'])
  @Delete('/:id')
  @@ -138,6 +136,6 @@ export class LectureController {
  await Lecture.findByIdAndRemove(id);
  - return {result: true};
  + return {};
  }
  }
  