Remove VisualizationWallpapers as it does not comply with API 23 rules

Change-Id: I3b7d643bdda1f5db0bcb835fa98614f166a48722
Reference: https://android.googlesource.com/device/asus/flo/+/1bde1e17aa8fbe9ec905a55fe3be7a106eda9d82%5E%21/#F0
1 file changed
tree: dec259340274f81430822da9ced9970a010d13f4
  1. default.xml
  2. qrd.xml
  3. README.mkdn