btrfs-progs: check/original: Remove unused variable first_key

This @first_key variable is introduced in f5c4c4f3b75b
("btrfsck: add code to rebuild extent records"), however it's not only
unused, but also used incorrectly.

It's calling btrfs_item_key_to_cpu() on an node extent buffer.

Anyway, just remove it.

Fixes: f5c4c4f3b75b ("btrfsck: add code to rebuild extent records")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/check/main.c b/check/main.c
index b476e07..891a6d7 100644 (file)
--- a/check/main.c
+++ b/check/main.c
@@ -6103,12 +6103,7 @@ static int run_next_block(struct btrfs_root *root,
                }
        } else {
                int level;
-               struct btrfs_key first_key;
 
-               first_key.objectid = 0;
-
-               if (nritems > 0)
-                       btrfs_item_key_to_cpu(buf, &first_key, 0);
                level = btrfs_header_level(buf);
                for (i = 0; i < nritems; i++) {
                        struct extent_record tmpl;