Revert "ProximityWake : Add support for checking proximity when waking device [1/2]"

This reverts commit 6fefec195614296d00f31608c7ad05f8d0f08d0c.

Conflicts:
	core/java/android/provider/Settings.java
Improve tethering notification icons

Replaces the stock icons with the ones I submitted as part of
http://review.cyanogenmod.com/#/c/15930/ in CM9.

Change-Id: Iecfae9ad579c6c9ae06da0a08b61e9359a8a37b0

Add xxhdpi versions of our improved tethering icons

Change-Id: If943f81389774a1f8ca0407cab4756687a273be7
Revert "VolumePanel: Rework design on top of Hover"

This reverts commit a778ea45629733c26f67dc0d0d06c08ea918d48c.