Remove expired ports:
2013-12-01 audio/liteamp: Dead upstream since 2004, does not build with clang
2013-12-08 security/opieprint: No more active upstream
2013-12-08 security/bubblegum: No more active upstream
2013-12-08 security/snortsms: Not active since several years.
2013-12-08 sysutils/hammerhead: Development no more active
2013-12-13 net-p2p/libtorrent-rasterbar-15-python: Unusable, development ceased
2013-12-13 graphics/openexr_ctl: Now distributed with ampasCTL-1.5