fix for #843 - remove unnecesary url prepping in image tiles

git-svn-id: http://svn.openlayers.org/trunk/openlayers@3768 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

tests/Layer/test_WMS.html

@@ -148,7 +148,7 @@
     }
 
     function test_06_Layer_WMS_mergeNewParams (t) {
-        t.plan( 5 );
+        t.plan( 4 );
 
         var map = new OpenLayers.Map("map");
         var url = "http://octo.metacarta.com/cgi-bin/mapserv";
@@ -159,7 +159,6 @@
 
         map.addLayer(layer);
         map.zoomToMaxExtent();
-        t.ok( !layer.grid[0][0].url.match("CHICKPEAS"), "CHICKPEAS is not in URL of first tile in grid" );
 
         layer.mergeNewParams(newParams);