Remove recommendation logic in pipeline

Removing logic that is now unused, including
- modifications to carousel sorting
- reactivating media players
- scrolling to newly active recommended media
- visibility checks

Bug: 382680767
Test: play media with/without scene container flag
Test: atest SystemUITests:com.android.systemui.media.controls
Flag: EXEMPT removing deprecated code
Change-Id: Ib1ca1ddc194a59aefdf8da8007f52c11d962cfb3