Remove expired ports:
2017-08-23 games/plee-the-bear: Broken for more than 6 months
2017-08-23 x11-themes/kde-icons-umicons: Broken for more than 6 months
2017-08-23 lang/bigloo: Broken for more than 6 months
2017-08-23 audio/linux-neroaaccodec: Broken for more than 6 months
2017-08-23 x11-themes/kde-icons-dark-glass: Broken for more than 6 months
2017-08-23 misc/fortune-mod-ferengi_rules_of_acquisition: Broken for more than 6 months
2017-08-23 misc/fortune-mod-culmea-culmilor: Broken for more than 6 months
2017-08-23 misc/xyzcmd: Broken for more than 6 months
2017-08-23 russian/fortuneru: Broken for more than 6 months
2017-08-23 security/bdc: Broken for more than 6 months
2017-08-23 x11-themes/kde-icons-icosx: Broken for more than 6 months
2017-08-23 devel/insight: Broken for more than 6 months
2017-08-23 devel/gdb66: Broken for more than 6 months
2017-08-23 biology/biojava: Broken for more than 6 months
2017-08-23 games/xroach: Broken for more than 6 months