ext4: remove unused variable in ext4_get_parent

Signed-off-by: Christoph Hellwig <hch@lst.de>
[ All users removed in "switch all filesystems over to d_obtain_alias",
  aka commit 440037287c5ebb07033ab927ca16bb68c291d309 ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 file changed