use sched_is_idle() and nuke the sched_chooseproc prototype since we already have on in sched.h
use sched_is_idle() and nuke the sched_chooseproc prototype since we
already have on in sched.h

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars