Revert of Telemetry Test for WebRTC Rendering.

Revert of Telemetry Test for WebRTC Rendering. (patchset #23 id:440001 of https://codereview.chromium.org/1254023003/ )

Reason for revert:
Some of the new tests fail on WinXP (testNegativeSmoothnessScoreChangedToZero and testNegativeFrezingScoreChangedToZero), starting here:
http://build.chromium.org/p/chromium.win/builders/XP%20Tests%20%281%29/builds/40439

Original issue's description:
> Telemetry Test for WebRTC Rendering.
>
> Design doc: https://docs.google.com/document/d/1TX0NnT_xxvnRNDkw6P2kxunXyK_I8OChkLb4jehXR9I/edit
>
> BUG=
> CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:linux_perf_bisect;tryserver.chromium.perf:mac_10_10_perf_bisect;tryserver.chromium.perf:win_perf_bisect;tryserver.chromium.perf:android_nexus5_perf_bisect
>
> Committed: https://crrev.com/4db46d73b08de41f0d838408b9b79b8844769489
> Cr-Commit-Position: refs/heads/master@{#353615}

TBR=eakuefner@chromium.org,nednguyen@google.com,phoglund@chromium.org,qiangchen@chromium.org,zhenw@chromium.org,cpaulin@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/0956a1950012e800f22ac051a07b9270bdebc9f0
Cr-Commit-Position: refs/heads/master@{#353711}

[Marc Treib, 2015-10-13 09:53:47]

Created Revert of Telemetry Test for WebRTC Rendering.

[commit-bot: I haz the power, 2015-10-13 09:53:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1401903002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1401903002/1

[commit-bot: I haz the power, 2015-10-13 09:54:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-13 09:55:39]

Patchset 1 (id:??) landed as
https://crrev.com/0956a1950012e800f22ac051a07b9270bdebc9f0
Cr-Commit-Position: refs/heads/master@{#353711}