diff -r 3a48bc350e0f -r 74589d20dbc3 src/hugo/list_graph.h
--- a/src/hugo/list_graph.h	Mon Sep 20 17:53:33 2004 +0000
+++ b/src/hugo/list_graph.h	Mon Sep 20 22:57:48 2004 +0000
@@ -442,9 +442,6 @@
 
     typedef SymListGraph Graph;
 
-    /// Importing maps from the base class ListGraph.
-    KEEP_MAPS(ListGraph, SymListGraph);
-
     /// Creating symmetric map registry.
     CREATE_SYM_EDGE_MAP_REGISTRY;
     /// Creating symmetric edge map.