Remove expired ports:
2017-10-15 devel/vtcl: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+
2017-10-15 editors/tpad: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+
2017-10-15 games/polypuzzle: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+
2017-10-15 multimedia/nxtvepg: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+
2017-10-15 net/xpvm: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+
2017-10-15 x11/tkXwin: This port depends on Tcl/Tk 8.4 , which is no longer maintained. Please port it to 8.5+