Revert of Wire up BWE stats through WebrtcSession so that they are filled in both for audio and video calls.

Revert of Wire up BWE stats through WebrtcSession so that they are filled in both for audio and video calls. (patchset #8 id:140001 of https://codereview.webrtc.org/2863123002/ )

Reason for revert:
Broken downstream projects

Original issue's description:
> Wire up BWE stats through WebrtcSession so that they are filled in both for audio and video calls.
> 
> Prior to this CL Call::Stats were collected via WebRtcVideoEngine2, but not via WebRtcVoiceEngine, causing these stats to be missing for audio-only calls. Call lives on the peerconnection/session level and should only be collected once independent on how many streams we have.
> 
> BUG=webrtc:5079
> R=deadbeef@webrtc.org, hbos@webrtc.org
> 
> Review-Url: https://codereview.webrtc.org/2863123002 .
> Cr-Commit-Position: refs/heads/master@{#18384}
> Committed: https://chromium.googlesource.com/external/webrtc/+/e80f4c91d0a2854a339e419162fdcd1d916f7de0

TBR=hbos@webrtc.org,deadbeef@webrtc.org,holmer@google.com,stefan@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5079
Review-Url: https://codereview.webrtc.org/2916793003
Cr-Commit-Position: refs/heads/master@{#18386}
Committed: https://chromium.googlesource.com/external/webrtc/+/d72098a41971833e210bfdcffaab7a18ced4775f

[charujain, 2017-06-01 15:54:34]

The CQ bit was checked by charujain@webrtc.org

[charujain, 2017-06-01 15:54:34]

Created Revert of Wire up BWE stats through WebrtcSession so that they are
filled in both for audio and video calls.

[commit-bot: I haz the power, 2017-06-01 15:54:52]

Description was changed from

==========
Revert of Wire up BWE stats through WebrtcSession so that they are filled in
both for audio and video calls. (patchset #8 id:140001 of
https://codereview.webrtc.org/2863123002/ )

Reason for revert:
Broken downstream projects

Original issue's description:
> Wire up BWE stats through WebrtcSession so that they are filled in both for
audio and video calls.
> 
> Prior to this CL Call::Stats were collected via WebRtcVideoEngine2, but not
via WebRtcVoiceEngine, causing these stats to be missing for audio-only calls.
Call lives on the peerconnection/session level and should only be collected once
independent on how many streams we have.
> 
> BUG=webrtc:5079
> R=deadbeef@webrtc.org, hbos@webrtc.org
> 
> Review-Url: https://codereview.webrtc.org/2863123002 .
> Cr-Commit-Position: refs/heads/master@{#18384}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/e80f4c91d0a2854a339e41916...

TBR=hbos@webrtc.org,deadbeef@webrtc.org,holmer@google.com,stefan@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5079
==========

to

==========
Revert of Wire up BWE stats through WebrtcSession so that they are filled in
both for audio and video calls. (patchset #8 id:140001 of
https://codereview.webrtc.org/2863123002/ )

Reason for revert:
Broken downstream projects

Original issue's description:
> Wire up BWE stats through WebrtcSession so that they are filled in both for
audio and video calls.
> 
> Prior to this CL Call::Stats were collected via WebRtcVideoEngine2, but not
via WebRtcVoiceEngine, causing these stats to be missing for audio-only calls.
Call lives on the peerconnection/session level and should only be collected once
independent on how many streams we have.
> 
> BUG=webrtc:5079
> R=deadbeef@webrtc.org, hbos@webrtc.org
> 
> Review-Url: https://codereview.webrtc.org/2863123002 .
> Cr-Commit-Position: refs/heads/master@{#18384}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/e80f4c91d0a2854a339e41916...

TBR=hbos@webrtc.org,deadbeef@webrtc.org,holmer@google.com,stefan@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5079

Review-Url: https://codereview.webrtc.org/2916793003
Cr-Commit-Position: refs/heads/master@{#18386}
Committed:
https://chromium.googlesource.com/external/webrtc/+/d72098a41971833e210bfdcff...
==========