Fix rotation animation selection.

The default activity specified value for rotation animation
should be unset, not ROTATE, so that it will not override
window specified versions.

Bug: 37671120
Test: Rotate camera 180 degrees...expect crossfade or jumpcut depending on APK version but never rotate animation.
Change-Id: I6acbf32b3de0e2848565cc6cb6fb62f625053634
1 file changed