Revert "Add Dark UI Toggle"

This reverts commit a23bd11da3af03fe686faf3a6b0c0657d77e8000.

Signed-off-by: task650 <task650@gmail.com>

Conflicts:
	core/res/res/drawable-inverted-mdpi/usb_android.png
	core/res/res/drawable-inverted-mdpi/usb_android_connected.png
	core/res/res/drawable-inverted-xhdpi/usb_android.png
	core/res/res/drawable-inverted-xhdpi/usb_android_connected.png