code: def user_remove(self, domain, userid):
          
          path = self._get_management_path(domain, userid)
          return self.http_request(path=path,
                                   method='DELETE')
docs: Remove a user
          :param AuthDomain domain: The authentication domain for the user.
          :param userid: The user ID to remove
          :raise: :exc:`couchbase.exceptions.HTTPError` if the user does not exist.
          :return: :class:`~.HttpResult`