btrfs: remove stale define after removing ordered operations

Last user removed in commit "btrfs: disable strict file flushes for
renames and truncates" (8d875f95da).

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
David Sterba 2014-08-20 17:34:22 +02:00 • committed by Chris Mason
commit f87c4318af