Removed most references to old audio_port code.  Now using AudioDevice utils as defined in audio_devices.cpp.
Removed most references to old audio_port code.  Now using AudioDevice utils as defined in audio_devices.cpp.

RTcmix/RTcmix,RTcmix/RTcmix,RTcmix/RTcmix,RTcmix/RTcmix,RTcmix/RTcmix,RTcmix/RTcmix