XR Rig Demo duplicates model geometry under BaseController and TeleportController

[pcatalanojr]

The XRRigDemo prefab, as shown in the WorldInteractionDemo, contains two controller objects for each hand, e.g. LeftBaseController and LeftTeleportController for the left hand and similar for right hand. The XR Controller on these GameObjects spawns a model prefab under their child "ModelPt". For a given hand, this object is spawned twice: once for the BaseController and one for the TeleportController. This results in rendering overlapping controller geometry for both hands at all times.

Ideally, either they should both point to the same geometry for a given hand, or toggle on and off based on user interaction mode.