Closes#71.
This removes a bunch of old references to $x_hacks['host'],
which was intended to allow this codebase to run two separate
forums at the same time based on what hostname it was accessed
from. This isn't used any more, so out it goes
Also commented out a couple of &tags&, since I don't think they're implemented at all?
Co-Authored-By: RanAwaySuccessfully <ranawaysuccessfully@users.noreply.github.com>