Revert "Handle timeout/state-change during fold animation"

This reverts commit c13e9b33.

Reason for revert: causing half black screen b/327965719

Bug: 327965719
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:9ec8f8ef9c505919e7d9e0e0f2d928d196bd82d2)
Merged-In: I012dea91225254f1ac17208fa134595e5bfd2bcb
Change-Id: I012dea91225254f1ac17208fa134595e5bfd2bcb