How to remove a joint in the Jog Mechanism/Motion Manager

Hi all,

I've added some joints using 'Define Kinematics' for my robot. I tested it in the Jog Mechanism and it all worked fine.
However, I later noticed I added an unnecessary Revolute Joint.

I deleted this under Engineering connections and all is working fine, but I can still see the deleted Revolute in the Jog Mechanism.

Can anyone tell my how to get rid of Joint Driver.3 since it's obsolete now.

Thanks