It was used only in tests.
Bug: webrtc:8422
Change-Id: I67b58663c171202240d1c5a7c230d6cd4cd6149b
Reviewed-on: https://webrtc-review.googlesource.com/13102
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20382}