devel/alog: Remove reference to base/full flavors in pkg-descr

The "full" option was removed, along with pgsql, xmpp, and smtp
facilities, so this removes references that were in the description.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@371028 35697150-7ecd-e111-bb59-0022644237b5