Delete SignalSrtpError.

Delete SignalSrtpError.

This became unused with cl https://codereview.webrtc.org/1362913004.

BUG=webrtc:4690, webrtc:6424
Review-Url: https://codereview.webrtc.org/2938013003
Cr-Commit-Position: refs/heads/master@{#18623}
Committed: https://chromium.googlesource.com/external/webrtc/+/af99b6d67af95615c8fc2f6dbea20983dd14385d

[nisse-webrtc, 2017-06-15 08:39:46]

nisse@webrtc.org changed reviewers:
+ pthatcher@webrtc.org, solenberg@webrtc.org

[nisse-webrtc, 2017-06-15 08:39:48]

Can we delete this now? 20 months ago, Peter said you wanted it around because
it might be useful in the future. But no use has turned up yet. To me, it looks
quite a lot of unused complexity.

I noticed it, because this code was also the only user of
base/sigslotrepeater.h.

[pthatcher1, 2017-06-16 01:55:51]

lgtm

[the sun, 2017-06-16 07:23:19]

lgtm

[nisse-webrtc, 2017-06-16 07:34:43]

The CQ bit was checked by nisse@webrtc.org

[commit-bot: I haz the power, 2017-06-16 07:34:48]

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, 2017-06-16 07:57:22]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1497598483134820,
"parent_rev": "92b607b033d44a56a84ed9925e99f0b999f8c431", "commit_rev":
"af99b6d67af95615c8fc2f6dbea20983dd14385d"}

[commit-bot: I haz the power, 2017-06-16 07:57:26]

Description was changed from

==========
Delete SignalSrtpError.

This became unused with cl https://codereview.webrtc.org/1362913004.

BUG=webrtc:4690,webrtc:6424
==========

to

==========
Delete SignalSrtpError.

This became unused with cl https://codereview.webrtc.org/1362913004.

BUG=webrtc:4690,webrtc:6424

Review-Url: https://codereview.webrtc.org/2938013003
Cr-Commit-Position: refs/heads/master@{#18623}
Committed:
https://chromium.googlesource.com/external/webrtc/+/af99b6d67af95615c8fc2f6db...
==========

[commit-bot: I haz the power, 2017-06-16 07:57:27]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/external/webrtc/+/af99b6d67af95615c8fc2f6db...

[Taylor Brandstetter, 2017-09-27 22:22:01]

deadbeef@webrtc.org changed reviewers:
+ deadbeef@webrtc.org

[Taylor Brandstetter, 2017-09-27 22:22:02]

https://codereview.webrtc.org/2938013003/diff/20001/webrtc/base/sigslotrepeat...
File webrtc/base/sigslotrepeater.h (left):

https://codereview.webrtc.org/2938013003/diff/20001/webrtc/base/sigslotrepeat...
webrtc/base/sigslotrepeater.h:23: namespace sigslot {
I wanted to use this... It would actually simplify a lot of our code; I have no
idea why we don't use it already. I think I'll add it back using a variadic
template.