It was used to force a codec to the top of a list, but it resulted in
"a < a" being true, which some C++ runtimes complain about.
BUG=None
TBR=pthatcher@webrtc.org
Review-Url: https://codereview.webrtc.org/2963543002
Cr-Commit-Position: refs/heads/master@{#18786}