Revert "[Frameworks] Add reboot tile to QS"

This reverts commit 1ebe99e77c8e0c8abd7631dee1d546e7211e2e5d.

Conflicts:

	packages/SystemUI/res/values/cm_strings.xml
	packages/SystemUI/src/com/android/systemui/quicksettings/RebootTile.java
	packages/SystemUI/src/com/android/systemui/statusbar/powerwidget/RebootButton.java