Revert of Add screenshare perf tests with lossy links

Revert of Add screenshare perf tests with lossy links (patchset #1 id:1 of https://codereview.webrtc.org/1409513005/ )

Reason for revert:
Reverting to see of this resolves build bot failures (Nexus 7.2, especially debug) which now seems to sometimes fail to start tests altogether.

Original issue's description:
> Add screenshare perf tests with lossy links
>
> BUG=
>
> Committed: https://crrev.com/4af0f1a098bc908cfe825981b825687673d5134a
> Cr-Commit-Position: refs/heads/master@{#10290}

TBR=pbos@webrtc.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://crrev.com/65a036780bc6ed19e0f52b6f16a56b8b4eb07086
Cr-Commit-Position: refs/heads/master@{#10322}

[sprang_webrtc, 2015-10-19 10:59:00]

Created Revert of Add screenshare perf tests with lossy links

[commit-bot: I haz the power, 2015-10-19 10:59:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415603002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415603002/1

[commit-bot: I haz the power, 2015-10-19 10:59:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-19 10:59:21]

Patchset 1 (id:??) landed as
https://crrev.com/65a036780bc6ed19e0f52b6f16a56b8b4eb07086
Cr-Commit-Position: refs/heads/master@{#10322}

[pbos-webrtc, 2015-10-19 12:03:05]

lgtm