stop installing /etc/networks, it is now unused; OK deraadt@ tb@

src/etc/Makefile

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.461 2017/11/05 10:29:24 rpe Exp $
+#	$OpenBSD: Makefile,v 1.462 2018/04/29 11:17:02 schwarze Exp $
 
 .include <bsd.own.mk>
 
@@ -41,7 +41,7 @@ BINOWN= root
 BINGRP= wheel
 MUTABLE=acme-client.conf changelist daily etc.${MACHINE}/disktab \
 	etc.${MACHINE}/login.conf ftpusers gettytab group ksh.kshrc locate.rc \
-	mailer.conf moduli monthly netstart networks newsyslog.conf ntpd.conf \
+	mailer.conf moduli monthly netstart newsyslog.conf ntpd.conf \
 	pf.os protocols rc rc.conf rpc services shells syslog.conf weekly
 
 # -rw-r--r--

src/etc/changelist

@@ -1,4 +1,4 @@
-#	$OpenBSD: changelist,v 1.119 2018/02/10 05:56:47 florian Exp $
+#	$OpenBSD: changelist,v 1.120 2018/04/29 11:17:02 schwarze Exp $
 #
 # List of files which the security script backs up and checks
 # for modifications.
@@ -80,7 +80,6 @@
 /etc/myname
 /etc/netgroup
 /etc/netstart
-/etc/networks
 /etc/newsyslog.conf
 /etc/npppd/npppd.conf
 +/etc/npppd/npppd-users

src/etc/networks

@@ -1,10 +0,0 @@
-#	$OpenBSD: networks,v 1.5 1997/09/15 09:54:52 deraadt Exp $
-#
-
-# Internet networks (from nic.ddn.mil)
-# 1) The multicast network
-BASE-ADDRESS.MCAST.NET	224
-loopback		127	loop
-
-# Your subnets follow...
-