Fix deinstallation of stale ports
Fix deinstallation of stale ports

It's mostly a hack, it should be replaced by pkg autoremove as soon as
it works.

khorben/pkg,junovitch/pkg,khorben/pkg,skoef/pkg,skoef/pkg,en90/pkg,khorben/pkg,en90/pkg,Open343/pkg,junovitch/pkg,Open343/pkg