Revert "Re-add auto brightness configuration UI (2/2)."

This reverts commit 149e9a7966bb9498c72db7cb1b4955c2cd1c12bf.

Conflicts:
	res/values/psd_strings.xml
Re-add auto brightness configuration UI (2/2). (Slim's implement)

This reverts commit a77478fa1e6c2f848b3368ef54b5f374e5441bc8.