msm8660: remove USE_SAMSUNG_VOIP_DEVICE

Change-Id: I27f84f861e3eb15da97862b3cfc89299af817fb3
msm8660: disable VOIP_ENABLED

* for use with VOIP over MVS
* MVS requires both inVoip and Directout
  streams to work properly

Change-Id: Iba25ca5a5725e6a6bd270d63d96e76e4202395df
Merge branch 'cm-10.1' of github.com:CyanogenMod/android_device_samsung_msm8660-common into cm-10.1