VoE: Remove unused interfaces

BUG=4690

I have removed methods in VoE interfaces that were marked to be removed. I have removed them also in fake and mock implementations. I have also updated the callers in various ways:
1. Project win_test had some calls to the removed methods, but it turned out that the project is not used anymore, so I removed it entirely.
2. There were some calls to removed methods in jni methods. I have removed couple of jni methods as now they seem to do nothing.
3. With the remaining callers I just removed the calls to removed methods.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/53519004

Cr-Commit-Position: refs/heads/master@{#9281}
28 files changed