Remove debugging protocol filter

Allow only BGP protocol by the default protocol filter.
(Which means: Remove Kernel, Device, Static protocols.)

src/ulgbird.py

@@ -378,7 +378,7 @@ class BirdGraphShowRouteAll(ulgmodel.TextCommand):
 class BirdRouter(ulgmodel.Router):
     RESCAN_PEERS_COMMAND = 'show protocols'
     RESCAN_TABLES_COMMAND = 'show symbols'
-    DEFAULT_PROTOCOL_FLTR = '^(Kernel|Device|Static|BGP).*$'
+    DEFAULT_PROTOCOL_FLTR = '^BGP.*$'
 
     def _getDefaultCommands(self):
         sh_proto_all = BirdShowProtocolsAllCommand(self.getBGPPeers())