Hardcoded krb reference in ports/postfix

[Vivek Khera]

>>>>> "MS" == Melvyn Sopacua <freebsd-stable at webteckies.org> writes:

MS> AFAIK - my /usr/lib/libkrb.a stems from the 4.2-RELEASE cd install I started 
MS> this comp with (it's dated Nov 2000) and thus hasn't been updated since and 

Then delete the file.  If it exists, it is assumed you use kerberos in
the current 4.x releases.  It doesn't exist otherwise.

Patches to alter the bahavior are welcome, if you don't agree with
this.