Remove libchill

libchill/ChangeLog

libchill/Makefile.in

libchill/abstime.c

libchill/allgmem.c

libchill/allmem.c

libchill/allocate.c

libchill/andps.c

libchill/auxtypes.h

libchill/basicio.c

libchill/bitstring.h

libchill/cardps.c

libchill/cause.c

libchill/checkcycle.c

libchill/chillrt0.c

libchill/chillstdio.c

libchill/concatps.c

libchill/concatstr.c

libchill/configure.in

libchill/continue.c

libchill/convdurrtstime.c