[PATCH] btrfs: remove btrfs_bio_end_io_t

[Johannes Thumshirn <jthumshirn@suse.de>]

The btrfs_bio_end_io_t typedef was introduced with commit
a1d3c4786a4b ("btrfs: btrfs_multi_bio replaced with btrfs_bio")
but never used anywhere. This commit also introduced a forward declaration
of 'struct btrfs_bio' which is only needed for btrfs_bio_end_io_t.

Remove both as they're not needed anywhere.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 fs/btrfs/volumes.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 8b092bb1e2ee..c93097b0b469 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -295,9 +295,6 @@ struct btrfs_bio_stripe {
 	u64 length; /* only used for discard mappings */
 };
 
-struct btrfs_bio;
-typedef void (btrfs_bio_end_io_t) (struct btrfs_bio *bio, int err);
-
 struct btrfs_bio {
 	refcount_t refs;
 	atomic_t stripes_pending;
-- 
2.16.4