Misleading Light Probes property in inspector when APV is enabled

Steps to repro:

1) Simply create any 3d object and a VFX graph in your scene

2) Check their Inspectors -> Probes/Light Probes tooltips

This property affects only Legacy probes, not APV and we should be more explicit about that in tooltips, for users who expect the same behaviour. 

Ideally we should hide this entire section altogether when probe mode is set to APV