With the recent bio mapping changes, the caller must pass in the
original bio for unmapping again (and they do). So kill this dead code,
it could cause problems in situations where someone has used bi_private
for something else.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>