Finish removing FDDI and tokenring media support.

This fixes media display for 802.11 wireless devices.

Software outside the base system that uses these media types and
defines should use #ifdef IFM_FDDI or IFM_TOKEN to include or remove
support.

Reported by: zeising
Reviewed by: emaste, kib, zeising
Tested by: zeising
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D15170