Removed MIT Kerberos v1.2 check, since Heimdal v1.2 is out and it works fine.
Removed MIT Kerberos v1.2 check, since Heimdal v1.2 is out and it works fine.

--HG--
branch : HEAD

jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot