Revert "Keep quiet when volume keys are used to wake up device"

This reverts commit 37de825e7e35c2352f4b36425bb5d32523fd29dc.
Revert "Fix volume key music controls and wake up"

This reverts commit 5189e2d05839298891c12d294b9d700b2d04dd5e.
Revert "Frameworks: only send volume key events to the session manager if it is not a wake key"

This reverts commit 3a24c29654a7ae50438cb069ebbe9283d28a7f87.
Revert "Android Policy: handle volume key event as wake key when preference is set"

This reverts commit 28a0167789d0501dd8a87b56b58f71a5d68d0d48.

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