message: API: Refactor deleteCourse success response to {}
diff: @@ -651,12 +651,10 @@ export class CourseController {
  * @apiParam {String} id Course ID.
  * @apiParam {IUser} currentUser Currently logged in user.
  *
  - * @apiSuccess {Boolean} result Confirmation of deletion.
  + * @apiSuccess {{}} result Empty object.
  *
  * @apiSuccessExample {json} Success-Response:
  - * {
  - * "result": true
  - * }
  + * {}
  *
  * @apiError NotFoundError
  * @apiError ForbiddenError
  @@ -672,6 +670,6 @@ export class CourseController {
  throw new ForbiddenError();
  }
  await course.remove();
  - return {result: true};
  + return {};
  }
  }
  