Remove NBPFILTER conditional since we do not include "bpfilter.h" and the <net/bpf.h> header is not required here.
Remove NBPFILTER conditional since we do not include "bpfilter.h" and the
<net/bpf.h> header is not required here.

ok henning@

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