Revert "Added request.Proxy=null everywhere, as discussed in http://stackoverflow.com/questions/2519655/httpwebrequest-is-extremely-slow."

But the patch is here, in case anyone wants to try it.

This reverts commit 531edd51d8.

OpenSim/Region/OptionalModules/Scripting/RegionReadyModule/RegionReadyModule.cs

@@ -280,7 +280,6 @@ namespace OpenSim.Region.OptionalModules.Scripting.RegionReady
             WebRequest request = WebRequest.Create(m_uri);
             request.Method = request_method;
             request.ContentType = content_type;
-            request.Proxy = null;
 
             Stream os = null;
             try