Revert "Forward Port: Volume button seek on screen off [2/2]"

This reverts commit 59fafaa40e965bdef79d9ee7dfb6e385a66a78c3.

Conflicts:

	src/com/android/settings/boost/VolumeRockerSettings.java
Settings: Forward Port Volume Long Press Skip Tracks (2/2)

Bring Forward Volume Rocker Track Change
Requires Framework Change
http://review.cyanogenmod.org/#/c/82221/

original: http://review.cyanogenmod.org/#/c/82222/

Change-Id: Ifa3d0987a0d54afd1f56e1d4a7488f428338c757