Learner\Repositories\SubscriberRepositoryInterface::deleteByEmail PHP Méthode

    public function deleteByEmail($email);

 /**
  * Remove a subscriber from database.
  *
  * /admin/subscribers/{email} delete
  *
  * @param  integer $email
  *
  * @return \Illuminate\Http\JsonResponse
  */
 public function destory($email)
 {
     if ($this->subscribers->deleteByEmail($email)) {
         News::unsubscribe($email);
     }
     return $this->responseJson(['message' => '删除成功']);
 }