Revert "fix VOIP calls"

This reverts commit e051ece8f725926cc84535322c3ae0b9dd0e1e98.
Revert "audio/msm8660: Enable VOIP calls"

This reverts commit 5e142bdcc36ac6f41d14675629eb5a2c6d889b2c.
Revert "msm8660: reworked audio to use system/audio.h"

This reverts commit 0f31080e87be400bd19b3f918afbdf2728bbfb56.

Conflicts:
	msm8660/AudioHardware.cpp
	msm8660/AudioPolicyManager.cpp