daemon: remove write-only variable maxfd

It became unused when 6573faff (NO_IPV6 support for git daemon) replaced
select() with poll().

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

daemon.c

diff --git a/daemon.c b/daemon.c
index 3be38f4..57b1a57 100644
--- a/daemon.c
+++ b/daemon.c
@@ -841,7 +841,6 @@
 static int setup_named_sock(char *listen_addr, int listen_port, struct socketlist *socklist)
 {
 	int socknum = 0;
-	int maxfd = -1;
 	char pbuf[NI_MAXSERV];
 	struct addrinfo hints, *ai0, *ai;
 	int gai;
@@ -909,9 +908,6 @@
 		ALLOC_GROW(socklist->list, socklist->nr + 1, socklist->alloc);
 		socklist->list[socklist->nr++] = sockfd;
 		socknum++;
-
-		if (maxfd < sockfd)
-			maxfd = sockfd;
 	}
 
 	freeaddrinfo(ai0);