Go back to calling IncomingCloseAgent() in the "kick user" command for consistency instead of IClientAPI.Close() directly.

This no longer double counts child agent removals

OpenSim/Region/Application/OpenSim.cs

@@ -486,7 +486,7 @@ namespace OpenSim
                     else
                         presence.ControllingClient.Kick("\nThe OpenSim manager kicked you out.\n");
 
-                    presence.ControllingClient.Close();
+                    presence.Scene.IncomingCloseAgent(presence.UUID);
                 }
             }
 

OpenSim/Region/Framework/Scenes/SceneGraph.cs

@@ -720,12 +720,6 @@ namespace OpenSim.Region.Framework.Scenes
 
         public int GetChildAgentCount()
         {
-            // some network situations come in where child agents get closed twice.
-//            if (m_numChildAgents < 0)
-//            {
-//                m_numChildAgents = 0;
-//            }
-
             return m_numChildAgents;
         }