Move "StopFlying()" into LLSpace. Try to reinstate the carefully crafted packet

we used to send before slimupdates and explicitly send it

OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs

@@ -1155,5 +1155,9 @@ namespace OpenSim.Region.Examples.SimpleModule
         public void SendTextBoxRequest(string message, int chatChannel, string objectname, string ownerFirstName, string ownerLastName, UUID objectId)
         {
         }
+
+        public void StopFlying(ISceneEntity presence)
+        {
+        }
     }
 }