Revert "Notification drawer custom background & notification rows transparency (1/2)"

This reverts commit 4fdaafbff3c246c0f0331d41ae5beeb042073e08.

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

Change-Id: If63299e24285464033385e3b136e99a9cd8d5b70