Switching between Vive Flow and Oculus in Unity - Wave Essence objects still created in project

[reconstructed]

So.. I  need to be able to switch between these vr packages. I've set the Plug-in provider to be only Oculus in the XR Plug-in management - and deactivated any Vive Wave stuff in the hierarchy - but whenever I run the app WaveEssence and WaveEditor gameobjects&components are created in DontDestroyOnLoad... and when I try to actually run the app on the Quest 2 (since adding the Vive Wave SDK) it crashes at startup.

I'd love to know what is creating those WaveEssence and WaveEditor objects and how I can stop that... it looks like something to do with Input?? 

Thanks