Revert "audio: Fix check for sonification on digital docks"

This reverts commit 7a133590ff567fe09b7f415371c78480d39a83e7.

Change-Id: I27968a26e755e85d4d0c150278bf7988cc86f4e6
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_hardware_libhardware_legacy into cm-11.0