removing stuff from do tables

direct/src/distributed/DistributedObjectGlobalAI.py

@@ -23,4 +23,5 @@ class DistributedObjectGlobalAI(DistributedObjectAI):
     
     def delete(self):
         self.air.unregisterForChannel(self.doId)
+        self.air.removeDOFromTables(self)
         DistributedObjectAI.delete(self)