Volume: No sound effects on the ringer toggle.

We beep and blort enough in the rocker when switching modes.

Bug:16377522
Change-Id: I4a61979cb323d6a9623d10e10547a19982db384f

packages/SystemUI/src/com/android/systemui/volume/VolumePanel.java

@@ -484,6 +484,7 @@ public class VolumePanel extends Handler {
             sc.icon.setImageResource(sc.iconRes);
             sc.icon.setClickable(isNotificationOrRing(streamType));
             if (sc.icon.isClickable()) {
+                sc.icon.setSoundEffectsEnabled(false);
                 sc.icon.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {