First part of the removal of drivers for hardware that isn't relevant

First part of the removal of drivers for hardware that isn't relevant
or whose drivers haven't even compiled for years.

The loran hardware was very unique, and only a few copies of it ever
existed.  It used the old COMPAT_ISA_DRIVER and when the author was
contacted, he indicated that he had no intention of ever updating this
driver and it was no longer relevant to the FreeBSD world and can be
removed without impact to anybody.

Approved by: phk