[PATCH] dm clone metadata: remove unused function

[Jiapeng Chong]

Fix the following clang warning:

drivers/md/dm-clone-metadata.c:279:19: warning: unused function
'superblock_write_lock' [-Wunused-function].

Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
---
 drivers/md/dm-clone-metadata.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/md/dm-clone-metadata.c b/drivers/md/dm-clone-metadata.c
index 1771245..c43d556 100644
--- a/drivers/md/dm-clone-metadata.c
+++ b/drivers/md/dm-clone-metadata.c
@@ -276,12 +276,6 @@ static inline int superblock_read_lock(struct dm_clone_metadata *cmd,
 	return dm_bm_read_lock(cmd->bm, SUPERBLOCK_LOCATION, &sb_validator, sblock);
 }
 
-static inline int superblock_write_lock(struct dm_clone_metadata *cmd,
-					struct dm_block **sblock)
-{
-	return dm_bm_write_lock(cmd->bm, SUPERBLOCK_LOCATION, &sb_validator, sblock);
-}
-
 static inline int superblock_write_lock_zero(struct dm_clone_metadata *cmd,
 					     struct dm_block **sblock)
 {
-- 
1.8.3.1