chroot: drop unused function call
chroot: drop unused function call

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

Closes: #1668
Approved by: rhatdan

rhatdan/buildah,projectatomic/buildah,projectatomic/buildah,rhatdan/buildah,projectatomic/buildah,TomSweeneyRedHat/buildah,nalind/buildah,nalind/buildah,nalind/buildah-1,nalind/buildah-1,rhatdan/buildah,TomSweeneyRedHat/buildah,nalind/buildah-1,TomSweeneyRedHat/buildah