modules/audio_coding: Remove some codec include dirs

webrtc/modules/audio_coding/codecs/cng/webrtc_cng.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 
-#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_MAIN_INCLUDE_WEBRTC_CNG_H_
-#define WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_MAIN_INCLUDE_WEBRTC_CNG_H_
+#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_WEBRTC_CNG_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_WEBRTC_CNG_H_
 
 #include <stddef.h>
 #include "webrtc/typedefs.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #define WEBRTC_CNG_MAX_LPC_ORDER 12
 #define WEBRTC_CNG_MAX_OUTSIZE_ORDER 640
@@ skipping 113 matching lines @@
  * Return value       :  0 - Ok
  *                      -1 - Error
  */
 int16_t WebRtcCng_Generate(CNG_dec_inst* cng_inst, int16_t* outData,
                            size_t nrOfSamples, int16_t new_period);
 
 /*****************************************************************************
  * WebRtcCng_GetErrorCodeEnc/Dec(...)
  *
  * This functions can be used to check the error code of a CNG instance. When
- * a function returns -1 a error code will be set for that instance. The 
+ * a function returns -1 a error code will be set for that instance. The
  * function below extract the code of the last error that occurred in the
  * specified instance.
  *
  * Input:
  *    - CNG_inst    : CNG enc/dec instance
  *
  * Return value     : Error code
  */
 int16_t WebRtcCng_GetErrorCodeEnc(CNG_enc_inst* cng_inst);
 int16_t WebRtcCng_GetErrorCodeDec(CNG_dec_inst* cng_inst);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_MAIN_INCLUDE_WEBRTC_CNG_H_
+#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_CNG_WEBRTC_CNG_H_