audio_coding: remove "main" directory

webrtc/modules/audio_coding/test/utility.h

Index: webrtc/modules/audio_coding/test/utility.h
diff --git a/webrtc/modules/audio_coding/main/test/utility.h b/webrtc/modules/audio_coding/test/utility.h
similarity index 94%
rename from webrtc/modules/audio_coding/main/test/utility.h
rename to webrtc/modules/audio_coding/test/utility.h
index e936ec1cddaf484dfdf523f676ce750d64a33fa6..23869be7ed6497768bcf39f495958c505eeb9718 100644
--- a/webrtc/modules/audio_coding/main/test/utility.h
+++ b/webrtc/modules/audio_coding/test/utility.h
@@ -8,11 +8,11 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_UTILITY_H_
-#define WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_UTILITY_H_
+#ifndef WEBRTC_MODULES_AUDIO_CODING_TEST_UTILITY_H_
+#define WEBRTC_MODULES_AUDIO_CODING_TEST_UTILITY_H_
 
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/modules/audio_coding/main/include/audio_coding_module.h"
+#include "webrtc/modules/audio_coding/include/audio_coding_module.h"
 
 namespace webrtc {
 
@@ -136,4 +136,4 @@ void UseNewAcm(webrtc::Config* config);
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_UTILITY_H_
+#endif  // WEBRTC_MODULES_AUDIO_CODING_TEST_UTILITY_H_