Some people don't use Simian. Make the connector respect that it's disabled

and not try to send a map tile in that case.

OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs

@@ -63,7 +63,7 @@ namespace OpenSim.Services.Connectors.SimianGrid
         #region ISharedRegionModule
 
         public Type ReplaceableInterface { get { return null; } }
-        public void RegionLoaded(Scene scene) { UploadMapTile(scene); }
+        public void RegionLoaded(Scene scene) { if (!String.IsNullOrEmpty(m_serverUrl)) { UploadMapTile(scene); } }
         public void PostInitialise() { }
         public void Close() { }