remove Control.KeyboardDefaults::destroy method: handler destroy already done in the parent class. r=bartvde (closes #3155)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11678 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/KeyboardDefaults.js

@@ -37,19 +37,7 @@ OpenLayers.Control.KeyboardDefaults = OpenLayers.Class(OpenLayers.Control, {
     /**
      * Constructor: OpenLayers.Control.KeyboardDefaults
      */
-    
-    /**
-     * APIMethod: destroy
-     */
-    destroy: function() {
-        if (this.handler) {
-            this.handler.destroy();
-        }        
-        this.handler = null;
         
-        OpenLayers.Control.prototype.destroy.apply(this, arguments);
-    },
-    
     /**
      * Method: draw
      * Create handler.