Remove the following mixports because of the usage of unsupported
flags:
* virtual_deep_buffer
* uplink downlink input
* voip record
* Multiroute
Rewire USB Device In and USB Headset In to go through primary input,
since uplink downlink input does not exist anymore.
Also, remove raw mixport and its uses, since it can cause sound
popping.
0b7df4e151