Revert of Add Jpeg frame writer for test support.

Revert of Add Jpeg frame writer for test support. (patchset #12 id:220001 of https://codereview.webrtc.org/2990563002/ )

Reason for revert:
breaks webrtc.linux

Original issue's description:
> Add Jpeg frame writer for test support.
> 
> Also, use it to save worst psnr frame in video quality tests. It is indented that these saved frames from perfbots will be uploaded to the cloud and will be available in chrome perf dashboard. Because of that size of the saved frame is somewhat an issue. Also, y4m is not convenient to view.
> 
> BUG=webrtc:8030
> 
> Review-Url: https://codereview.webrtc.org/2990563002
> Cr-Commit-Position: refs/heads/master@{#19414}
> Committed: https://chromium.googlesource.com/external/webrtc/+/26e5cbd6bb38ed734559ab70cb7362870d76c923

TBR=stefan@webrtc.org,pbos@webrtc.org,sprang@webrtc.org,ilnik@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:8030

[charujain1, 2017-08-19 23:43:17]

The CQ bit was checked by charujain@google.com

[charujain1, 2017-08-19 23:43:18]

Created Revert of Add Jpeg frame writer for test support.

[commit-bot: I haz the power, 2017-08-19 23:43:22]

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, 2017-08-19 23:43:23]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-08-19 23:43:24]

No L-G-T-M from a valid reviewer yet.
CQ run can only be started once the patch has received an L-G-T-M from a full
committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,_not_ a
full super star committer.
Committers are members of the group "project-webrtc-committers".
Note that this has nothing to do with OWNERS files.

[charujain1, 2017-08-19 23:45:13]

The CQ bit was checked by charujain@google.com

[commit-bot: I haz the power, 2017-08-19 23:45:23]

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, 2017-08-19 23:45:23]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-08-19 23:45:25]

No L-G-T-M from a valid reviewer yet.
CQ run can only be started once the patch has received an L-G-T-M from a full
committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,_not_ a
full super star committer.
Committers are members of the group "project-webrtc-committers".
Note that this has nothing to do with OWNERS files.

[ilnik, 2017-08-29 13:50:46]

On 2017/08/19 23:45:25, commit-bot: I haz the power wrote:
> No L-G-T-M from a valid reviewer yet.
> CQ run can only be started once the patch has received an L-G-T-M from a full
> committer.
> Even if an L-G-T-M may have been provided, it was from a non-committer,_not_ a
> full super star committer.
> Committers are members of the group "project-webrtc-committers".
> Note that this has nothing to do with OWNERS files.

Charu, this revert is a duplicate of a landed one. It may be a nice idea to
delete it.