efficient way to delete face rigging bones from hair?

Mistara

i'm tweaking some of my hair contents.

i tried converting a conforming hair to a prop, but it lost all the movement morphs.

learned with the joint editor, can remove 1 bone at a time.

is there a simple way to remove all the face rigging bones from the hair?
the hair doesnt bend at the joints, all the rigging is superfluous.  Thanks!