build+routerrpc+lncli: remove routerrpc conditional compilation

cmd/lncli/routerrpc.go

@@ -0,0 +1,13 @@
+package main
+
+import "github.com/urfave/cli"
+
+// routerCommands returns a list of routerrpc commands.
+func routerCommands() []cli.Command {
+	return []cli.Command{
+		queryMissionControlCommand,
+		queryProbCommand,
+		resetMissionControlCommand,
+		buildRouteCommand,
+	}
+}