Revert "Synchronize the app launch and taskbar stash animations."

This reverts commit cde962dcb71b83d4fe4e5dd2cc109c157d22e739.

Fixes: 355666644
Reason for revert: Memory leak b/355666644

Change-Id: I2eee00d2d8d65e1e1805ad76fafc7caab8626715
3 files changed