Revert of Adding PRESUBMIT check on google::protobuf

Revert of Adding PRESUBMIT check on google::protobuf (patchset #2 id:20001 of https://codereview.webrtc.org/2753823003/ )

Reason for revert:
We have to revert https://codereview.webrtc.org/2747863003 and this CL depends on it.

Original issue's description:
> Adding PRESUBMIT check on google::protobuf
> 
> The goal is to avoid direct usage of google::protobuf.
> 
> It should only be used with a 'using' directive in the header file:
> //webrtc/base/protobuf_utils.h.
> 
> BUG=webrtc:7340
> NOTRY=True
> 
> Review-Url: https://codereview.webrtc.org/2753823003
> Cr-Commit-Position: refs/heads/master@{#17467}
> Committed: https://chromium.googlesource.com/external/webrtc/+/dd27055cb78aa839659ed9e9f0656a265c285ae7

TBR=kjellander@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:7340
Review-Url: https://codereview.webrtc.org/2791583002
Cr-Commit-Position: refs/heads/master@{#17481}
Committed: https://chromium.googlesource.com/external/webrtc/+/515dff40b711c70780612f2a4850e151a28bacde

[mbonadei, 2017-03-31 08:53:15]

The CQ bit was checked by mbonadei@webrtc.org

[mbonadei, 2017-03-31 08:53:15]

Created Revert of Adding PRESUBMIT check on google::protobuf

[commit-bot: I haz the power, 2017-03-31 08:53:18]

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, 2017-03-31 09:36:29]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490950395124210, "parent_rev":
"ff046c74c50c98bcd79274c31c10a65327c31ef1", "commit_rev":
"515dff40b711c70780612f2a4850e151a28bacde"}

[commit-bot: I haz the power, 2017-03-31 09:36:31]

Description was changed from

==========
Revert of Adding PRESUBMIT check on google::protobuf (patchset #2 id:20001 of
https://codereview.webrtc.org/2753823003/ )

Reason for revert:
We have to revert https://codereview.webrtc.org/2747863003 and this CL depends
on it.

Original issue's description:
> Adding PRESUBMIT check on google::protobuf
> 
> The goal is to avoid direct usage of google::protobuf.
> 
> It should only be used with a 'using' directive in the header file:
> //webrtc/base/protobuf_utils.h.
> 
> BUG=webrtc:7340
> NOTRY=True
> 
> Review-Url: https://codereview.webrtc.org/2753823003
> Cr-Commit-Position: refs/heads/master@{#17467}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/dd27055cb78aa839659ed9e9f...

TBR=kjellander@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:7340
==========

to

==========
Revert of Adding PRESUBMIT check on google::protobuf (patchset #2 id:20001 of
https://codereview.webrtc.org/2753823003/ )

Reason for revert:
We have to revert https://codereview.webrtc.org/2747863003 and this CL depends
on it.

Original issue's description:
> Adding PRESUBMIT check on google::protobuf
> 
> The goal is to avoid direct usage of google::protobuf.
> 
> It should only be used with a 'using' directive in the header file:
> //webrtc/base/protobuf_utils.h.
> 
> BUG=webrtc:7340
> NOTRY=True
> 
> Review-Url: https://codereview.webrtc.org/2753823003
> Cr-Commit-Position: refs/heads/master@{#17467}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/dd27055cb78aa839659ed9e9f...

TBR=kjellander@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=webrtc:7340

Review-Url: https://codereview.webrtc.org/2791583002
Cr-Commit-Position: refs/heads/master@{#17481}
Committed:
https://chromium.googlesource.com/external/webrtc/+/515dff40b711c70780612f2a4...
==========

[commit-bot: I haz the power, 2017-03-31 09:36:32]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/515dff40b711c70780612f2a4...

[mbonadei, 2017-04-03 18:31:33]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2792103002/ by mbonadei@webrtc.org.

The reason for reverting is: This should be landed after
https://codereview.webrtc.org/2791963003..