Fix home animation jank when quickly pressing home button

Pressing the home button a second time while the app icon is animating cancels the animation. The listener view's AFV doesn't need to be explicitly closed since it will be cleaned up.

Flag: not needed
Fixes: 291807246
Test: manually pressed the home button twice quickly
Change-Id: Ia963e06da78742eade91a6174c3d5f5328368bc5
1 file changed