remove old unused line of code

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1410 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/PanZoom.js

@@ -80,7 +80,6 @@ OpenLayers.Control.PanZoom.prototype =
      */
     _addButton:function(id, img, xy, sz) {
         var imgLocation = OpenLayers.Util.getImagesLocation() + img;
-        // var btn = new ol.AlphaImage("_"+id, imgLocation, xy, sz);
         var btn = OpenLayers.Util.createAlphaImageDiv(
                                     "OpenLayers_Control_PanZoom_" + id, 
                                     xy, sz, imgLocation, "absolute");