remove declaration of undefined 'AgAttrdisc'

diff --git a/lib/cgraph/cghdr.h b/lib/cgraph/cghdr.h
index 76c73912fa5d75aaff0dcb9e0a518f24d2e81f7e..1b8972a927732117d91aed11d8db0f14d6ceca44 100644 (file)
--- a/lib/cgraph/cghdr.h
+++ b/lib/cgraph/cghdr.h
@@ -71,7 +71,6 @@ extern Dtdisc_t Ag_subedge_id_disc;
 extern Dtdisc_t Ag_mainedge_seq_disc;
 extern Dtdisc_t Ag_subedge_seq_disc;
 extern Dtdisc_t Ag_subgraph_id_disc;
-extern Agcbdisc_t AgAttrdisc;
 
        /* internal constructor of graphs and subgraphs */
 Agraph_t *agopen1(Agraph_t * g);