From a16508fb1c2befb7c2f700d88bf8b1c7aaa6d9d1 Mon Sep 17 00:00:00 2001
From: Jesse <jesse.greenberg@colorado.edu>
Date: Mon, 1 Apr 2019 14:01:44 -0400
Subject: [PATCH] remove custom a11y listener now that ButtonListener is
 instrumented, see #487

---
 js/Checkbox.js | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/js/Checkbox.js b/js/Checkbox.js
index 9b98b2e6..b130af09 100644
--- a/js/Checkbox.js
+++ b/js/Checkbox.js
@@ -128,24 +128,16 @@ define( function( require ) {
     content.pickable = false; // since there's a pickable rectangle on top of content
 
     // interactivity
-    var fire = function() {
-      if ( self.enabledProperty.value ) {
-        var newValue = !property.value;
-        toggledEmitter.emit( newValue );
-      }
-    };
-
     var checkboxButtonListener = new ButtonListener( {
-      fire: fire
+      fire: function() {
+        if ( self.enabledProperty.value ) {
+          var newValue = !property.value;
+          toggledEmitter.emit( newValue );
+        }
+      }
     } );
     this.addInputListener( checkboxButtonListener );
 
-    // a11y - fire the listener when checkbox is clicked with keyboard or assistive technology
-    var changeListener = {
-      change: fire
-    };
-    this.addInputListener( changeListener );
-
     // sync with property
     var checkboxCheckedListener = function( checked ) {
       self.checkedNode.visible = checked;