Remove two functions unused after r273848.  Would be nice if clang
or at least scan-build yelled about it.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/base/head@273861 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f