Update build properties:
- Removing conflicting debug.composition.type=gpu
- Adding debug.hwc.fakevsync=1

It's causing unwanted HWC framebuffer renderings, spamming the log. Should fix the issue.

Change-Id: If78a506276522261c0c3ffc400ae9ad465ca25db
Removing overlay with default wallpaper as it moved to vendor/pa instead

Change-Id: I26777ac5bce1521b6c11806dbdfd42dd0dc6a826