Disable fade-out animation on grid items

Modifier.animateItem's fade out animation is not supported when the grid
contains AndroidView instances. In this case, the animation breaks and
is flashing unrelated pieces of UI during the fade.

Fixes: 376495198
Test: manually by flashing and removing items from the grid
Flag: EXEMPT bugfix
Change-Id: I436f0f8972616d1bf017b1f3e2e1e6be37fdc2c3