Revert "Forward Port: Volume button seek on screen off [1/2]"

This reverts commit 6bfe680b268834602c70df2550ba72c70be1e04b.

Conflicts:
	core/java/android/provider/Settings.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Settings: Forward Port Volume Long Press Skip Tracks (1/2)

Bring Forward Volume Rocker Track Change

Requires Settings Change
http://review.cyanogenmod.org/#/c/82222/

Change-Id: I70b00e08fe48707110725dd1daa56b1e48d15a03

Conflicts:
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java