Revert the change to rtc_tools/testing/utils.py in
https://webrtc-review.googlesource.com/c/src/+/12540
because it breaks downstream build pipeline.
TBR=phoglund@webrtc.org
Bug: webrtc:8393,b/67931921
Change-Id: Iee77f6b9b15fe03894ee63b48c07eaf3dce40c99
No-try: True
Reviewed-on: https://webrtc-review.googlesource.com/13101
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20337}