Delete ShadeViewController.isExpandingOrCollapsing

Moves the more thoughtfully written implementation from
ShadeLockscreenInteractor to ShadeController, replaced all references
to the one in ShadeViewController with it, and deletes it from
both ShadeViewController and ShadeLockscreenInteractor.

Flag: ACONFIG com.android.systemui.scene_container DEVELOPMENT
Test: Updated and ran affected test
Bug: 303267342
Change-Id: Ib1396793f23340c50ac7f19416c9088aa635e86d
8 files changed