Keep foreground drawable centered during app open/close animation.

For apps that use AdaptiveIcon, we used to animate the foreground
drawable independently from the background. This is sometimes
perceived as jank so we remove the animation since it is very subtle
in the best case scenario.

Bug: 268026344
Test: open/close apps/folders that use AdaptiveIcons
Change-Id: I500bf56e04823757d511d909a93d3b30703249a1