Remove VideoProcessorIntegrationTest::SetTestConfig.

BUG=webrtc:6634

Review-Url: https://codereview.webrtc.org/3004983002
Cr-Original-Commit-Position: refs/heads/master@{#19648}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: ffbe1cd07ef1b20a59415a0d440e8684505a2902
5 files changed