/usr/src/*bin: remove unused variables

Patrick's "bootloader: remove unsued variables" mail reminded me about this diff I still have. M sbin/vnconfig/vnconfig.c M usr.sbin/pcidump/pcidump.c M usr.sbin/wsfontload/wsfontload.c M usr.bin/less/line.c M usr.bin/make/engine.c M usr.bin/systat/c

/usr/src/*bin: remove unused variables

COPTS=-Wunused yielded the following diff which removes unused variables as well as one function. No object change for any of those programs. OK? Index: sbin/vnconfig/vnconfig.c === RCS file: /cvs/src/sbin/vnconfig/vnconfig.c,v ret