I have completely removed the Guest account by following this method: Is there a way to remove the Guest account?
I've disabled & removed the guest, then added the two build.prop fw.* entries but I can't even find settings.db and the adb shell settings global guest_user_enabled 0 cmd has no effect.
I still see the guest account icon when I pull down the top bar and click the blue user thing pulls up a blank name card.
Is there a way to completely remove this icon?