Remove expired ports:
2018-06-06 biology/ssaha: Broken for more than 6 months
2018-06-06 biology/crux: Broken for more than 6 months
2018-06-06 biology/ariadne: Broken for more than 6 months
2018-06-06 cad/sceptre: Broken for more than 6 months
2018-06-06 cad/cider: Broken for more than 6 months
2018-06-06 chinese/scim-array: Broken for more than 6 months
2018-06-06 chinese/xpdf: Broken for more than 6 months
2018-06-06 chinese/telnet: Broken for more than 6 months
2018-06-06 comms/java-commapi-freebsd: Depends on BROKEN and expiring comms/java-commapi
2018-06-06 comms/soundmodem: Broken for more than 6 months
2018-06-06 comms/jsdr: Broken for more than 6 months
2018-06-06 comms/java-commapi: Broken for more than 6 months
2018-06-06 converters/pdf2djvu: Broken for more than 6 months
2018-06-06 databases/rdb: Broken for more than 6 months
2018-06-06 databases/animenfo-client: Broken for more than 6 months
2018-06-06 databases/ruby-mysql: Broken for more than 6 months
2018-06-06 databases/riak: Broken for more than 6 months
2018-06-06 databases/animenfo-client-gtk: Broken for more than 6 months
2018-06-06 databases/rdfdb: Broken for more than 6 months
2018-06-06 databases/riak2: Broken for more than 6 months
2018-06-06 devel/subversion-static: Broken for more than 6 months
2018-06-06 japanese/xgate: Broken for more than 6 months
2018-06-06 textproc/opengrm-ngram: Broken for more than 6 months
2018-06-06 textproc/ocaml-tyxml: Depends on BROKEN and expiring www/ocaml-net
2018-06-06 www/ocaml-net: Broken for more than 6 months
2018-06-06 audio/linux-genpuid: Broken for more than 6 months
2018-06-06 x11/enventor: Broken for more than 6 months
2018-06-06 audio/xmms-timidity: Broken for more than 6 months
2018-06-06 audio/kaudiocreator: Broken for more than 6 months
2018-06-06 audio/jxm: Depends on BROKEN and expiring comms/java-commapi
2018-06-06 audio/deforaos-mixer: Broken for more than 6 months
2018-06-06 audio/gkrellmss2: Broken for more than 6 months
2018-06-06 audio/ogg2mp3: Broken for more than 6 months
2018-06-06 audio/abcmidi: Broken for more than 6 months
2018-06-06 benchmarks/netpipe: Broken for more than 6 months
2018-06-06 biology/plink: Broken for more than 6 months