When RFC 8555 support was added in r1.23, token and url were left
unused. token was removed a day later. url had to wait a bit longer.

Index: netproc.c
===================================================================
RCS file: /cvs/src/usr.sbin/acme-client/netproc.c,v
diff -u -p -r1.34 netproc.c
--- netproc.c	28 Apr 2024 08:29:56 -0000	1.34
+++ netproc.c	28 Apr 2024 08:35:19 -0000
@@ -663,7 +663,7 @@ netproc(int kfd, int afd, int Cfd, int c
 {
 	int		 rc = 0;
 	size_t		 i;
-	char		*cert = NULL, *thumb = NULL, *url = NULL, *error = NULL;
+	char		*cert = NULL, *thumb = NULL, *error = NULL;
 	struct conn	 c;
 	struct capaths	 paths;
 	struct order	 order;
@@ -898,7 +898,6 @@ out:
 	close(dfd);
 	close(rfd);
 	free(cert);
-	free(url);
 	free(thumb);
 	free(c.kid);
 	free(c.buf.buf);