Modify amserverconfig to not mention xinetd.
In https://bugzilla.redhat.com/show_bug.cgi?id=1460763 a user is running
amserverconfig and is confused because it tells them to mess with xinetd
files. Obviously xinetd manipulation is unnecessary on Fedora, but the
script may otherwise be useful and it doesn't actually do anything with
xinetd besides printing the message.
So let's patch out the call to the function which outputs the
xinetd-related message.