bokehDOFrecombine always running

Regardless of if I have DOF enabled or disabled this always appears to be eating into my GPU time.
Even disabling DOF using a showflag doesnt get rid of it.
I also tried changing DOF to gaussian but still this is getting called.

http://i.imgur.com/fVOnaXhb.png

Does anybody have any ideas as to whats going on here?