Stop clobbering the systemUiVisibility on navbar touch. (DO NOT MERGE)

Bug: 5328284
Change-Id: Ib49af35a7919dbf1cdb99f357798101d2534e853

Author: dsandler

packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java

@@ -253,15 +253,6 @@ public void onFinishInflate() {
         mCurrentView = mRotatedViews[Surface.ROTATION_0];
     }
 
-    @Override
-    public boolean onTouchEvent(MotionEvent ev) {
-        try {
-            mBarService.setSystemUiVisibility(0);
-        } catch (android.os.RemoteException ex) {
-        }
-        return false; // pass it on
-    }
-
     public void reorient() {
         final int rot = mDisplay.getRotation();
         for (int i=0; i<4; i++) {