macos: remove mistyped vnode warning

macos: remove mistyped vnode warning

newborn vnodes are corrected if needed; don't worry about it.

Reviewed-on: http://gerrit.openafs.org/7270
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
Tested-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit be1f110f3efb41a72278c7abc8a22cbfcfa8d0e3)

Change-Id: I82485f348afe9adbd0dc5743a4f15f18b7e04420
Reviewed-on: http://gerrit.openafs.org/7486
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>