Also deletes unused constructor in Results struct. Bug: webrtc:10932 Change-Id: Id33f57db30df49aa23fb0b5959812cc3834f1eaf Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196508 Reviewed-by: Björn Terelius <terelius@webrtc.org> Commit-Queue: Christoffer Rodbro <crodbro@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32777}