MediaMetrics: Track AudioTrack and AudioRecord callers am: 736a91df76 am: 125735ddbc am: a55b24ba24 am: 40a614c5fa

Change-Id: I2c31dd42fdf01cb76879116ea1702ce74830f3d5
diff --git a/src/jni/rtp/GsmCodec.cpp b/src/jni/rtp/GsmCodec.cpp
index 4a04bfa..ff1acec 100644
--- a/src/jni/rtp/GsmCodec.cpp
+++ b/src/jni/rtp/GsmCodec.cpp
@@ -16,9 +16,7 @@
 
 #include "AudioCodec.h"
 
-extern "C" {
 #include "gsm.h"
-}
 
 namespace {