btrfs: Remove newest_gen argument from find_oldest_super_backup

It's no longer needed following cleanups around find_newest_backup_root

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2019-10-15 18:42:18 +03:00 • committed by David Sterba
commit fc2e4c5b35