Revert "Detect an activity "replacement" transition and animate accordingly"

This reverts commit 8546d327326b3899d9dff0393e69a2f3de627fe9.

Reason for revert: b/298590286: SUW is doing the same thing, but expects the CLOSE animation.

Change-Id: I7462a87f07b76fec9558946eda59e29bb56fc313
3 files changed