- Removed libmd from the Kerberos library set.
- Removed libmd from the Kerberos library set.

- Removed libopie and libmd; libopie used to serve auth-skey.c
  which is compiled now only to ease maintenance, as well as
  a few other auth-*.c sources.

Reviewed by:	des

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase