reversing the r2599 patch, as this started causing CreateThread errors for

me on Mono 1.2.4, which led to client crashes.  I think the Timer.Stop() 
wasn't doing what was desired on Mono.  The Queue refactoring should address
the readability issues lbsa71 was working on as soon as I get the merge together.

OpenSim/Region/Environment/Scenes/Scene.cs

@@ -396,7 +396,6 @@ namespace OpenSim.Region.Environment.Scenes
                     module.Close();
                 }
             }
-
             Modules.Clear();
 
             base.Close();