Revert "QuickSettings - yet again tighten up FileObserverTile logic"

This reverts commit e9c6998b0169710e37ca0debe7356e5fdcfedd17.
Revert "QuickSettings - fix FileObserverTile logic"

This reverts commit cbd212f05954e05b0bbc0deb7c366eaca0290566.
Revert "Abstract tile for two-state kernel feature toggle"

This reverts commit 32b74461dd0c11ff0ae346d487b01aee2b80bb4d.

Conflicts:

	packages/SystemUI/src/com/android/systemui/quicksettings/OtouchTile.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java
Revert "Port Ringer Mode QS Tile credit @CyanogenMod"

This reverts commit 5ad49d8c062f63e376ff778100243bdadb05c7c4.

Conflicts:

	core/java/android/provider/Settings.java
Revert "Port CyanogenMod Tile Engine credit and respect to @CyanogenMod"

This reverts commit e8fb5a78d9e5eddade75ca48f61fc336a5698f87.

Conflicts:

	core/java/com/android/internal/util/cm/QSUtils.java
	packages/SystemUI/AndroidManifest.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java