Comment 6 for bug 1923268

Note that upstream and all distro grubs have moved on to query for:

"""
This patch implements a search for a specific configuration when the config
file is on a remoteserver. It uses the following order:
   1) DHCP client UUID option.
   2) MAC address (in lower case hexadecimal with dash separators);
   3) IP (in upper case hexadecimal) or IPv6;
   4) The original grub.cfg file.
"""

Is that not sufficient in the future?