Fix:add dn42 and change config

bird/conf/unet.conf

@@ -1,13 +1,3 @@
-
-function unet_is_self_net() {
-  return net ~ [
-    10.188.6.0/23+,
-    10.188.5.124/30,
-    44.32.191.16/28,
-    44.32.191.7/32
-  ];
-}
-
 protocol static route_unet_export_v4 {
     route 10.188.6.0/23 reject; 
     route 10.188.5.124/30 reject;
@@ -25,14 +15,6 @@ protocol static route_unet_export_v4 {
     };
 }
 
-
-function unet_is_self_net_v6() {
-  return net ~ [
-    2406:840:e603::/48{48,56},
-    2406:840:e60e::/56
-    ];
-}
-
 protocol static route_unet_export_v6 {
     route 2406:840:e603::/48 reject; 
     route 2406:840:e60e::/56 reject;