Remove dead code (IMSG_HOST_DNS has been moved from the parent to

ntp_dns some years ago).
OK henning@

src/usr.sbin/ntpd/ntpd.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: ntpd.c,v 1.91 2015/02/10 11:46:39 reyk Exp $ */
+/*	$OpenBSD: ntpd.c,v 1.92 2015/02/11 03:16:57 reyk Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -295,11 +295,8 @@ int
 dispatch_imsg(struct ntpd_conf *lconf)
 {
 	struct imsg		 imsg;
-	int			 n, cnt;
+	int			 n;
 	double			 d;
-	char			*name;
-	struct ntp_addr		*h, *hn;
-	struct ibuf		*buf;
 
 	if ((n = imsg_read(ibuf)) == -1)
 		return (-1);
@@ -346,34 +343,6 @@ dispatch_imsg(struct ntpd_conf *lconf)
 			lconf->settime = 0;
 			timeout = INFTIM;
 			break;
-		case IMSG_HOST_DNS:
-			name = imsg.data;
-			if (imsg.hdr.len < 1 + IMSG_HEADER_SIZE)
-				fatalx("invalid IMSG_HOST_DNS received");
-			imsg.hdr.len -= 1 + IMSG_HEADER_SIZE;
-			if (name[imsg.hdr.len] != '\0' ||
-			    strlen(name) != imsg.hdr.len)
-				fatalx("invalid IMSG_HOST_DNS received");
-			if ((cnt = host_dns(name, &hn)) == -1)
-				break;
-			buf = imsg_create(ibuf, IMSG_HOST_DNS,
-			    imsg.hdr.peerid, 0,
-			    cnt * sizeof(struct sockaddr_storage));
-			if (cnt > 0) {
-				if (buf) {
-					for (h = hn; h != NULL; h = h->next)
-						if (imsg_add(buf, &h->ss,
-						    sizeof(h->ss)) == -1) {
-							buf = NULL;
-							break;
-						}
-				}
-				host_dns_free(hn);
-				hn = NULL;
-			}
-			if (buf)
-				imsg_close(ibuf, buf);
-			break;
 		default:
 			break;
 		}