Revert "Status bar brightness control"

This reverts commit a14bd7fb7488ddbf8c63fe44e08f5a65f84d27f4.
Battery text mode (2/2)

Change-Id: Ib83be7522345c829f9ed599f3cbc03fb15b81173
Forward Port: Hide USB Debugging Icon [2/2]

Change-Id: I30efbc5bb19c88f0863fa8ea9e11cf0a547ac109