Handling Launcher configuration change between touchDown and Launcher.onStart

If activity rotation is allowed, Launcher/recents can rotate while swipe animation
is running leading to inconsistencies between deviceProfile and rotation
> Using activity configuration to determine the rotation instead of using display rotation
> Removing rotation watcher when rotation is enabled as it is not used anymore

Bug: 158781568
Change-Id: I107d856cae80af111c0514656fac7ab1fa0c21cb