Remove redundant semicolon from namespace closing

Change-Id: I163f9d3d216c283ae1160ce4802e5247cf44fba7
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
index 836f550..93d821a 100644
--- a/services/audioflinger/AudioMixer.cpp
+++ b/services/audioflinger/AudioMixer.cpp
@@ -2300,4 +2300,4 @@
 }
 
 // ----------------------------------------------------------------------------
-}; // namespace android
+} // namespace android