[PATCH -next] btrfs: Remove unused variable 'fs_info'

[YueHaibing]

fs/btrfs/volumes.c: In function ‘btrfs_rm_dev_replace_free_srcdev’:
fs/btrfs/volumes.c:2217:24: warning: unused variable ‘fs_info’ [-Wunused-variable]
  struct btrfs_fs_info *fs_info = srcdev->fs_info;
                        ^~~~~~~

Caused by commit 65237ee3b6b3 ("btrfs: get fs_info from device
in btrfs_rm_dev_replace_free_srcdev")

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 fs/btrfs/volumes.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ec62fc0ec113..b775ed5d3737 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2214,7 +2214,6 @@ void btrfs_rm_dev_replace_remove_srcdev(struct btrfs_device *srcdev)
 
 void btrfs_rm_dev_replace_free_srcdev(struct btrfs_device *srcdev)
 {
-	struct btrfs_fs_info *fs_info = srcdev->fs_info;
 	struct btrfs_fs_devices *fs_devices = srcdev->fs_devices;
 
 	mutex_lock(&uuid_mutex);
-- 
2.17.1