Devise\Users\UserManager::destroyUser PHP Method

    public function destroyUser($id)
    {
        $user = $this->DvsUser->findOrFail($id);
        return $user->delete();
    }

 /**
  * Request the user be deleted from database
  *
  * @param  integer $id
  * @return Redirector
  */
 public function requestDestroyUser($id)
 {
     $this->UserManager->destroyUser($id);
     return $this->Redirect->route('dvs-users')->with('message', 'User successfully removed');
 }