Delete ShadeStateEvents

Replaces the last remaining ShadeStateEvents method with a new flow in
ShadeAnimationInteractor that handles the data formerly owned by NPVC.
Removes ShadeEventsModule and moves its only remaining binding to
ShadeModule. Also removed some dead code that I encountered.

Test: updated and ran affected tests
Test: added new tests
Test: manually ran through basic shade CUJs
Fixes: 300245110
Flag: ACONFIG com.android.systemui.scene_container DEVELOPMENT
Change-Id: I92315a282fe2711c63d36e80775edef91a719301