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/ConsoleClient/Requester.cs

@@ -46,8 +46,8 @@ namespace OpenSim.ConsoleClient
             WebRequest request = WebRequest.Create(requestUrl);
             WebResponse response = null;
 
-            request.Proxy = null;
             request.Method = "POST";
+
             request.ContentType = "application/x-www-form-urlencoded";
 
             byte[] buffer = Encoding.ASCII.GetBytes(data);