Fixing 'Item removed' announced twice when using accessible DnD

Change-Id: I2d8781155619d22a41c3f363be7909d411c62fa9
diff --git a/src/com/android/launcher3/ButtonDropTarget.java b/src/com/android/launcher3/ButtonDropTarget.java
index 9caa7ad..69688f3 100644
--- a/src/com/android/launcher3/ButtonDropTarget.java
+++ b/src/com/android/launcher3/ButtonDropTarget.java
@@ -303,14 +303,10 @@
         setOnClickListener(enable ? this : null);
     }
 
-    protected String getAccessibilityDropConfirmation() {
-        return null;
-    }
-
     @Override
     public void onClick(View v) {
         LauncherAppState.getInstance().getAccessibilityDelegate()
-            .handleAccessibleDrop(this, null, getAccessibilityDropConfirmation());
+            .handleAccessibleDrop(this, null, null);
     }
 
     public int getTextColor() {
diff --git a/src/com/android/launcher3/DeleteDropTarget.java b/src/com/android/launcher3/DeleteDropTarget.java
index 2a0e203..edaf525 100644
--- a/src/com/android/launcher3/DeleteDropTarget.java
+++ b/src/com/android/launcher3/DeleteDropTarget.java
@@ -125,9 +125,4 @@
         dragLayer.animateView(d.dragView, fling, duration, tInterpolator, onAnimationEndRunnable,
                 DragLayer.ANIMATION_END_DISAPPEAR, null);
     }
-
-    @Override
-    protected String getAccessibilityDropConfirmation() {
-        return getResources().getString(R.string.item_removed);
-    }
 }