code: def delete_role(self, name, mount_point=DEFAULT_MOUNT_POINT):
          
          api_path = '/v1/{mount_point}/roles/{name}'.format(
              mount_point=mount_point,
              name=name,
          )
          return self._adapter.delete(
              url=api_path,
          )
docs: Delete an existing role by the given name.
  
          If the role does not exist, a 404 is returned.
  
          Supported methods:
              DELETE: /{mount_point}/roles/{name}. Produces: 204 (empty body)
  
          :param name: the name of the role to delete. This
              is part of the request URL.
          :type name: str | unicode
          :param mount_point: The "path" the method/backend was mounted on.
          :type mount_point: str | unicode
          :return: The response of the request.
          :rtype: requests.Response