btrfs: extent-tree: remove unused member walk_control::for_reloc

Leftover after fix e339a6b097 ("Btrfs: __btrfs_mod_ref should always
use no_quota"), that removed it from the function calls but not the
structure.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2018-07-24 17:19:48 +02:00
commit b5851021f1