Remove optional dependency on unstaged mail/dcc-dccd
2014-08-31 mail/dcc-dccd: Not staged. See http://lists.freebsd.org/pipermail/freebsd-ports-announce/2014-May/000080.html
2014-08-31 games/alienarena: Not staged. See http://lists.freebsd.org/pipermail/freebsd-ports-announce/2014-May/000080.html
2014-09-07 games/alienarena-data: Useless without alienarena