AudioService: Send the right stream to the volume UI on tablet changes.

Bug: 21798314
Change-Id: Idd49eb9e1253a94e567866a38b664035aea3715b
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index d39b25f..47d3bde 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -1542,11 +1542,7 @@
 
     // UI update and Broadcast Intent
     private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) {
-        if (!isPlatformVoice() && (streamType == AudioSystem.STREAM_RING)) {
-            streamType = AudioSystem.STREAM_NOTIFICATION;
-        } else {
-            streamType = mStreamVolumeAlias[streamType];
-        }
+        streamType = mStreamVolumeAlias[streamType];
 
         if (streamType == AudioSystem.STREAM_MUSIC) {
             flags = updateFlagsForSystemAudio(flags);