btrfs: remove unused parameter fs_info from btrfs_truncate_item

Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index aa557b4..b6b570b 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2932,8 +2932,7 @@ int btrfs_block_can_be_shared(struct btrfs_root *root,
 			      struct extent_buffer *buf);
 void btrfs_extend_item(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
 		       u32 data_size);
-void btrfs_truncate_item(struct btrfs_fs_info *fs_info,
-			 struct btrfs_path *path, u32 new_size, int from_end);
+void btrfs_truncate_item(struct btrfs_path *path, u32 new_size, int from_end);
 int btrfs_split_item(struct btrfs_trans_handle *trans,
 		     struct btrfs_root *root,
 		     struct btrfs_path *path,