Revert "Tell curses to free its internal data structure"
Revert "Tell curses to free its internal data structure"

NetBSD curses doesn't handle set_term(NULL) and segfaults.
Overall not worth the trouble.

This reverts commit d172e5fe9fb69123eecd00ac4f461927bbd71e46.

Signed-off-by: Marc Andre Tanner <cc7c5be316e48d137cbb549833b85d91034d799d@brain-dump.org>

benjohnson2001/dvtm,raedwulf/dvtm,gridsystem/dvtmx,lotrfan/dvtm,raedwulf/dvtm,tgvaughan/dvtm,gridsystem/dvtmx,tgvaughan/dvtm,lotrfan/dvtm,armanbilge/dvtm,raedwulf/dvtm,armanbilge/dvtm,delphinus35/dvtm,lotrfan/dvtm,medgar123/dvtm,tgvaughan/dvtm,medgar123/dvtm,delphinus35/dvtm,benjohnson2001/dvtm,medgar123/dvtm,benjohnson2001/dvtm