'Delete an signatory whose signature image is already removed or does not exist'

@ddt.data(C4X_SIGNATORY_PATH, SIGNATORY_PATH)
def test_deleting_signatory_without_signature(self, signatory_path):

    self._add_course_certificates(count=2, signatory_count=4, asset_path_format=signatory_path)
    test_url = '{}/signatories/3'.format(self._url(cid=1))
    response = self.client.delete(test_url, content_type='application/json', HTTP_ACCEPT='application/json', HTTP_X_REQUESTED_WITH='XMLHttpRequest')
    self.assertEqual(response.status_code, 204)
