volume listener: declare no process flag

Add flag indicating no process function is implemented and
remove process function.

Bug: 31491112
Change-Id: Ia44a78e928ac31112ced498403416987320b1d5c
1 file changed
tree: f014f114d532c27f48d5b65216bb8f747027bb3c
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk