cdrom: Drop menu option for HDT

cdrom: Drop menu option for HDT

The Hardware Detection Tool does not work and I do not think it is worth
to investigate. It is an ancient piece of software which does not work
on EFI systems which are becoming more and more common.

Since this has presumably been broken for a long time which nobody has
reported I assume that nobody is using it. There are indeed lots better
live CDs out there with much better diagnostic tools.

Fixes: #12870
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Acked-by: Peter Müller <peter.mueller@ipfire.org>