Walking behavior / too many (head turn) views

I have a character with 3 "master" views (frontal/left quarter/right quarter). The frontal view has 3 head turns, whereas the left and right views only have one corresponding head view each. 

The walking behavior automatically adds all these views and is not working properly, but there seems to be no way to remove views in that behavior. Is that a problem and is there a way to clean things up?