Remove unused agc_unittest.cc and agc_harness.cc

- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
Committed: https://crrev.com/f383c5754f4aef35830484d71517a84742c4166f
Cr-Commit-Position: refs/heads/master@{#14039}

[the sun, 2016-09-01 12:29:21]

solenberg@webrtc.org changed reviewers:
+ henrik.lundin@webrtc.org, kwiberg@webrtc.org

[hlundin-webrtc, 2016-09-01 13:03:31]

Description was changed from

==========
- Remove unused unit test webrtc/modules/audio_prcessing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

to

==========
- Remove unused unit test webrtc/modules/audio_prcessing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

[hlundin-webrtc, 2016-09-01 13:05:24]

On 2016/09/01 12:29:22, the sun wrote:

Typo in CL title and first line of description. And the CL title only mentions
the unittest specifically, not the agc_harness or the helpers. Make it more
general to cover all.

[hlundin-webrtc, 2016-09-01 13:06:46]

lgtm (with title and descriptions fixed)

Good riddance!

[the sun, 2016-09-01 13:24:45]

Description was changed from

==========
- Remove unused unit test webrtc/modules/audio_prcessing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

to

==========
- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

[kwiberg-webrtc, 2016-09-02 07:48:50]

lgtm

[the sun, 2016-09-02 07:51:27]

The CQ bit was checked by solenberg@webrtc.org

[commit-bot: I haz the power, 2016-09-02 07:51:35]

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, 2016-09-02 09:39:39]

Description was changed from

==========
- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

to

==========
- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

[commit-bot: I haz the power, 2016-09-02 09:39:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-02 09:39:48]

Description was changed from

==========
- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690
==========

to

==========
- Remove unused unit test webrtc/modules/audio_processing/agc/agc_unittest.cc
- Remove webrtc/tools/agc/test_utils.cc/.h - only used from the above test.
- Remove webrtc/tools/agc/agc_harness.cc - not used anymore.

BUG=webrtc:4690

Committed: https://crrev.com/f383c5754f4aef35830484d71517a84742c4166f
Cr-Commit-Position: refs/heads/master@{#14039}
==========

[commit-bot: I haz the power, 2016-09-02 09:39:49]

Patchset 1 (id:??) landed as
https://crrev.com/f383c5754f4aef35830484d71517a84742c4166f
Cr-Commit-Position: refs/heads/master@{#14039}