audio_coding: remove "main" directory

webrtc/modules/audio_coding/test/TestStereo.cc

Index: webrtc/modules/audio_coding/test/TestStereo.cc
diff --git a/webrtc/modules/audio_coding/main/test/TestStereo.cc b/webrtc/modules/audio_coding/test/TestStereo.cc
similarity index 99%
rename from webrtc/modules/audio_coding/main/test/TestStereo.cc
rename to webrtc/modules/audio_coding/test/TestStereo.cc
index bb38fac7388ab5651582fc33c472ebcf7b1bb76e..19f027b0582ec7dd86e08f0228cadd8827d75d4c 100644
--- a/webrtc/modules/audio_coding/main/test/TestStereo.cc
+++ b/webrtc/modules/audio_coding/test/TestStereo.cc
@@ -8,7 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/modules/audio_coding/main/test/TestStereo.h"
+#include "webrtc/modules/audio_coding/test/TestStereo.h"
 
 #include <assert.h>
 
@@ -17,8 +17,8 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/common_types.h"
 #include "webrtc/engine_configurations.h"
-#include "webrtc/modules/audio_coding/main/include/audio_coding_module_typedefs.h"
-#include "webrtc/modules/audio_coding/main/test/utility.h"
+#include "webrtc/modules/audio_coding/include/audio_coding_module_typedefs.h"
+#include "webrtc/modules/audio_coding/test/utility.h"
 #include "webrtc/system_wrappers/include/trace.h"
 #include "webrtc/test/testsupport/fileutils.h"