Disable useless BWE tests.

TBR=kjellander@webrtc.org
BUG=webrtc:5468

Review URL: https://codereview.webrtc.org/1654113002

Cr-Original-Commit-Position: refs/heads/master@{#11449}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 6f7557e9e2cf5cd11570fadfd817cddf2bd44909
1 file changed