eliminate unused and redundant SceneObjectGroup.AssetReceived()

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -3332,23 +3332,6 @@ namespace OpenSim.Region.Framework.Scenes
                 parts[i].CheckSculptAndLoad();
         }
 
-        /// <summary>
-        /// Handle an asset received asynchronously from the asset service.
-        /// </summary>
-        /// <param name="id"></param>
-        /// <param name="sender"></param>
-        /// <param name="asset"></param>
-        protected void AssetReceived(string id, Object sender, AssetBase asset)
-        {
-            SceneObjectPart sop = (SceneObjectPart)sender;
-
-            if (sop != null)
-            {
-                if (asset != null)
-                    sop.SculptTextureCallback(asset);
-            }
-        }
-
         /// <summary>
         /// Set the user group to which this scene object belongs.
         /// </summary>