Delete record.

    Arguments:

        prs:  parser object of argparse
        conn: dictionary of connection information

def parse_delete(prs, conn):
    """Delete record.

    Arguments:

        prs:  parser object of argparse
        conn: dictionary of connection information
    """
    prs_delete = prs.add_parser(
        'delete', help='delete a record of specific zone')
    set_option(prs_delete, 'domain')
    conn_options(prs_delete, conn)
    prs_delete.set_defaults(func=delete)