audiopolicy: Remove ; after namespace bracket

Semicolons are not needed after the closing bracket of
a namespace, remove it.

Test: compiles
Change-Id: Ie82930365f738fd9c95a9163839a68b772e49d95
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index 59d5d14..623180e 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -192,6 +192,6 @@
     KeyedVector< audio_session_t, EffectVector* > mOutputSessions;
 };
 
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_AUDIOPOLICYEFFECTS_H