Revert of Reland "Add first part of the network_tester functionality"

Revert of Reland "Add first part of the network_tester functionality" (patchset #3 id:40001 of https://codereview.chromium.org/2808203003/ )

Reason for revert:
Break downstream bots.

Original issue's description:
> Reland "Add first part of the network_tester functionality"
> 
> BUG=webrtc:7426
> 
> Review-Url: https://codereview.webrtc.org/2808203003
> Cr-Commit-Position: refs/heads/master@{#17666}
> Committed: https://chromium.googlesource.com/external/webrtc/+/1c223b2f7557ff449add7a114d72ea97614731b5

TBR=stefan@webrtc.org,minyue@webrtc.org,nisse@webrtc.org,terelius@webrtc.org,michaelt@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7426
Review-Url: https://codereview.webrtc.org/2813193002
Cr-Commit-Position: refs/heads/master@{#17672}
Committed: https://chromium.googlesource.com/external/webrtc/+/e5fd38989de6900cd32e7c88932201ec3b3467d8

[philipel, 2017-04-12 12:07:42]

The CQ bit was checked by philipel@webrtc.org

[philipel, 2017-04-12 12:07:43]

Created Revert of Reland "Add first part of the network_tester functionality"

[commit-bot: I haz the power, 2017-04-12 12:07:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-04-12 12:07:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491998862860110, "parent_rev":
"f2501004759a8d634ae5b2426e76ec0c8e5b557a", "commit_rev":
"e5fd38989de6900cd32e7c88932201ec3b3467d8"}

[commit-bot: I haz the power, 2017-04-12 12:08:03]

Description was changed from

==========
Revert of Reland "Add first part of the network_tester functionality" (patchset
#3 id:40001 of https://codereview.chromium.org/2808203003/ )

Reason for revert:
Break downstream bots.

Original issue's description:
> Reland "Add first part of the network_tester functionality"
> 
> BUG=webrtc:7426
> 
> Review-Url: https://codereview.webrtc.org/2808203003
> Cr-Commit-Position: refs/heads/master@{#17666}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/1c223b2f7557ff449add7a114...

TBR=stefan@webrtc.org,minyue@webrtc.org,nisse@webrtc.org,terelius@webrtc.org,...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7426
==========

to

==========
Revert of Reland "Add first part of the network_tester functionality" (patchset
#3 id:40001 of https://codereview.chromium.org/2808203003/ )

Reason for revert:
Break downstream bots.

Original issue's description:
> Reland "Add first part of the network_tester functionality"
> 
> BUG=webrtc:7426
> 
> Review-Url: https://codereview.webrtc.org/2808203003
> Cr-Commit-Position: refs/heads/master@{#17666}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/1c223b2f7557ff449add7a114...

TBR=stefan@webrtc.org,minyue@webrtc.org,nisse@webrtc.org,terelius@webrtc.org,...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7426

Review-Url: https://codereview.webrtc.org/2813193002
Cr-Commit-Position: refs/heads/master@{#17672}
Committed:
https://chromium.googlesource.com/external/webrtc/+/e5fd38989de6900cd32e7c889...
==========

[commit-bot: I haz the power, 2017-04-12 12:08:04]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/e5fd38989de6900cd32e7c889...

[minyue-webrtc, 2017-04-13 08:23:48]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2811253005/ by minyue@webrtc.org.

The reason for reverting is: The blocker in upstreaming has been removed..