Revert 5711 "Fixing a flaky test in video_engine_tests"
Revert 5711 "Fixing a flaky test in video_engine_tests"

> Fixing a flaky test in video_engine_tests
> 
> VideoSendStreamTest.SuspendBelowMinBitrate was flaky. The problem was that when the first non-padding packet was sent after the stream was resumed, the statistics had not always been updated so that stats.suspended was false. After seeing the first non-padding packet after suspension, the test will now go into a state where it waits for the statistics to be changed.
> 
> BUG=3068
> R=pbos@webrtc.org
> TBR=stefan@webrtc.org
> 
> Review URL: https://webrtc-codereview.appspot.com/10069004

TBR=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/10089005

Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 12499ff20bbc8c23b0391905978cf5bdd50eb382

sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc,sippet/webrtc