def METHOD_NAME(compute_api, server_id, key):
    compute_api.module.debug("Starting deleting user_data attributes: %s" % key)
    response = compute_api.delete(path="servers/%s/user_data/%s" % (server_id, key))
    if not response.ok:
        msg = 'Error during user_data deleting: (%s) %s' % response.status_code, response.body
        compute_api.module.fail_json(msg=msg)
    return response