audio_coding: remove "main" directory

webrtc/modules/audio_coding/test/Channel.h

Index: webrtc/modules/audio_coding/test/Channel.h
diff --git a/webrtc/modules/audio_coding/main/test/Channel.h b/webrtc/modules/audio_coding/test/Channel.h
similarity index 93%
rename from webrtc/modules/audio_coding/main/test/Channel.h
rename to webrtc/modules/audio_coding/test/Channel.h
index ff6937ec08c3c92fd296ecb48f81bc7abb418904..b047aa9909f1bac676f2c6ac6749c7ed72c0e238 100644
--- a/webrtc/modules/audio_coding/main/test/Channel.h
+++ b/webrtc/modules/audio_coding/test/Channel.h
@@ -8,12 +8,12 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_CHANNEL_H_
-#define WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_CHANNEL_H_
+#ifndef WEBRTC_MODULES_AUDIO_CODING_TEST_CHANNEL_H_
+#define WEBRTC_MODULES_AUDIO_CODING_TEST_CHANNEL_H_
 
 #include <stdio.h>
 
-#include "webrtc/modules/audio_coding/main/include/audio_coding_module.h"
+#include "webrtc/modules/audio_coding/include/audio_coding_module.h"
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/typedefs.h"
 
@@ -127,4 +127,4 @@ class Channel : public AudioPacketizationCallback {
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_CHANNEL_H_
+#endif  // WEBRTC_MODULES_AUDIO_CODING_TEST_CHANNEL_H_