Delete rtc_event_log/ringbuffer.h

Delete rtc_event_log/ringbuffer.h

This code is unused since https://codereview.webrtc.org/2875823003/ and the current implementation is too specific to the event log to be useful elsewhere. I think we should get add a reusable cyclic buffer though and I made a rough draft of what it might look like: https://codereview.webrtc.org/2691073002/

BUG=webrtc:7732
Review-Url: https://codereview.webrtc.org/2923163006
Cr-Commit-Position: refs/heads/master@{#18465}
Committed: https://chromium.googlesource.com/external/webrtc/+/f53c4cd8674f3719799aaf0c926d8d23985b89b6

[terelius, 2017-06-07 07:52:56]

The CQ bit was checked by terelius@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2017-06-07 07:53:05]

Dry run: CQ is trying da patch.

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

[terelius, 2017-06-07 07:53:20]

terelius@webrtc.org changed reviewers:
+ nisse@webrtc.org

[commit-bot: I haz the power, 2017-06-07 08:14:28]

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

[commit-bot: I haz the power, 2017-06-07 08:14:29]

Dry run: This issue passed the CQ dry run.

[nisse-webrtc, 2017-06-07 08:50:32]

lgtm.

[terelius, 2017-06-07 08:51:14]

The CQ bit was checked by terelius@webrtc.org

[commit-bot: I haz the power, 2017-06-07 08:51:20]

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, 2017-06-07 08:53:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496825474557320, "parent_rev":
"5665caf743b2f0cf580aacbbe9cabd4d1b893666", "commit_rev":
"f53c4cd8674f3719799aaf0c926d8d23985b89b6"}

[commit-bot: I haz the power, 2017-06-07 08:53:35]

Description was changed from

==========
Delete rtc_event_log/ringbuffer.h

This code is unused since https://codereview.webrtc.org/2875823003/ and the
current implementation is too specific to the event log to be useful elsewhere.
I think we should get add a reusable cyclic buffer though and I made a rough
draft of what it might look like: https://codereview.webrtc.org/2691073002/

BUG=webrtc:7732
==========

to

==========
Delete rtc_event_log/ringbuffer.h

This code is unused since https://codereview.webrtc.org/2875823003/ and the
current implementation is too specific to the event log to be useful elsewhere.
I think we should get add a reusable cyclic buffer though and I made a rough
draft of what it might look like: https://codereview.webrtc.org/2691073002/

BUG=webrtc:7732

Review-Url: https://codereview.webrtc.org/2923163006
Cr-Commit-Position: refs/heads/master@{#18465}
Committed:
https://chromium.googlesource.com/external/webrtc/+/f53c4cd8674f3719799aaf0c9...
==========

[commit-bot: I haz the power, 2017-06-07 08:53:36]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/f53c4cd8674f3719799aaf0c9...