Remove expired ports:
2017-12-12 audio/cd-console: No public distfiles
2017-12-12 textproc/pecl-cld: Depends on expired devel/cld
2017-12-12 textproc/p5-Lingua-Identify-CLD: Depends on expired devel/cld
2017-04-30 devel/cld: Unfetchable for more than six months (google code has gone away)