def METHOD_NAME(minion):
    '''
    Delete a previously rejected minion key from minions_rejected
    :param minion: the minion id to look for
    :return: map containing retcode and stdout/stderr
    '''
    path_rejected = "/etc/salt/pki/master/minions_rejected/"
    path = os.path.normpath(path_rejected + minion)
    if not path.startswith(path_rejected):
        return {"retcode": -1, "stderr": "Unexpected path: " + path}
    if os.path.isfile(path):
        cmd = ['rm', path]
        return _cmd(cmd)
    return {"retcode": 0}