Remove Java PC support.
This cl removes none Android Java support.

Review URL: https://codereview.webrtc.org/1652123002

Cr-Original-Commit-Position: refs/heads/master@{#11522}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 47b62634441b23d7ccdf4f1e080d8d0fcc099ec0
12 files changed