Rigify: face.skin_eye with optional eyelashes

Currently, the face.skin_eye Rigify bone type comes with eyelash bones that are required (deleting them yields an error), but some rigs (such as mine) only need the eye bones with the tracking functionality.

Deleting all the generated eyelash bones is a pain, specially if you need to re-generate the rig multiple times.

It would be nice if eyelashes were optional in face.skin_eye , or if a different bone type without them existed.