Removed modifications to Array.prototype and moved them into OL.Util instead. All tests pass.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1590 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/GeoRSS.js

@@ -148,7 +148,7 @@ OpenLayers.Layer.GeoRSS.prototype =
         if (this.features != null) {
             while(this.features.length > 0) {
                 var feature = this.features[0];
-                this.features.remove(feature);
+                OpenLayers.Util.removeItem(this.features, feature);
                 feature.destroy();
             }
         }        

lib/OpenLayers/Layer/Grid.js

@@ -324,7 +324,7 @@ OpenLayers.Layer.Grid.prototype =
             for(var iRow=0; iRow < this.grid.length; iRow++) {
                 var row = this.grid[iRow];
                 for(var iCol=0; iCol < row.length; iCol++) {
-                    row[iCol].clear();
+                    OpenLayers.Util.clearArray(row[iCol]);
                 }
             }
         }

lib/OpenLayers/Layer/Markers.js

@@ -70,7 +70,7 @@ OpenLayers.Layer.Markers.prototype =
      * @param {OpenLayers.Marker} marker
      */
     removeMarker: function(marker) {
-        this.markers.remove(marker);
+        OpenLayers.Util.removeItem(this.markers, marker);
         if ((marker.icon != null) && (marker.icon.imageDiv != null) &&
             (marker.icon.imageDiv.parentNode == this.div) ) {
             this.div.removeChild(marker.icon.imageDiv);    

lib/OpenLayers/Layer/Text.js

@@ -155,7 +155,7 @@ OpenLayers.Layer.Text.prototype =
         if (this.features != null) {
             while(this.features.length > 0) {
                 var feature = this.features[0];
-                this.features.remove(feature);
+                OpenLayers.Util.removeItem(this.features, feature);
                 feature.destroy();
             }
         }        

lib/OpenLayers/Layer/WMS/Untiled.js

@@ -124,7 +124,7 @@ OpenLayers.Layer.WMS.Untiled.prototype =
 
             //clear out the old tile 
             if (this.tile) {
-                this.tile.clear();
+                OpenLayers.Util.clearArray(this.tile);
             }
 
             //determine new tile bounds