code: def delete_mockdata_url(service_name, implementation_name,
                          url, headers,
                          dir_base=dirname(__file__)):
      
      # Http response code 204 No Content:
      # The server has fulfilled the request but does not need to
      # return an entity-body
      response = MockHTTP()
      response.status = 204
      return response
docs: :param service_name:
          possible "sws", "pws", "book", "hfs", etc.
      :param implementation_name:
          possible values: "file", etc.