Pass old and new volume to CEC without rounding up

Unnecessary rounding up was causing volume change requests
not to be converted to CEC commands occasionally. Removed
the operation.

Bug: 19332158
Change-Id: Ia074722058ada55d46f38aea7a2b915bb5fd2a00

services/core/java/com/android/server/audio/AudioService.java

@@ -1182,8 +1182,7 @@ public class AudioService extends IAudioService.Stub {
             synchronized (mHdmiTvClient) {
                 final long token = Binder.clearCallingIdentity();
                 try {
-                    mHdmiTvClient.setSystemAudioVolume(
-                            (oldVolume + 5) / 10, (newVolume + 5) / 10, maxVolume);
+                    mHdmiTvClient.setSystemAudioVolume(oldVolume, newVolume, maxVolume);
                 } finally {
                     Binder.restoreCallingIdentity(token);
                 }