/**
  * Delete User
  *
  * @param $id
  * @return \Illuminate\Routing\Redirector
  */
 public function delete($id)
 {
     if ($this->user->delete($id)) {
         return redirect()->route('user.list')->withSuccess(trans('user.delete_success'));
     }
     return redirect()->route('user.list')->withError(trans('user.delete_fail'));
 }