remove dn42

bird/conf/dn42.conf

@@ -1,14 +0,0 @@
-protocol static route_dn42_export_v4 {
-    route 172.20.21.0/26 reject; 
-
-    ipv4 {
-        table dn42v4;
-        import filter {
-            bgp_large_community.add((DN42_ASN,3,0));# 不允许导出到内核
-            bgp_large_community.add((DN42_ASN,1,0));# 不允许传输到ibgp
-            bgp_large_community.add((DN42_ASN,200,0));# 传输到Ebgp
-            accept;
-        };
-        export none;
-    };
-}