btrfs: delayed-ref: Cleanup the unneeded functions.

Cleanup the rb_tree merge/insert/update functions, since now we use list
instead of rb_tree now.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Qu Wenruo 2015-03-30 17:12:29 +08:00 • committed by Chris Mason
commit c43d160fcd