src: remove symlink trickery previously used for nanobsd images

It's ok to write /etc/resolv.conf.

src/etc/inc/system.inc

@@ -124,7 +124,7 @@ function system_resolvconf_generate($dynupdate = false)
 
 	$dnslock = lock('resolvconf', LOCK_EX);
 
-	$fd = fopen("{$g['varetc_path']}/resolv.conf", "w");
+	$fd = fopen('/etc/resolv.conf', 'w');
 	if (!$fd) {
 		printf("Error: cannot open resolv.conf in system_resolvconf_generate().\n");
 		unlock($dnslock);
@@ -133,7 +133,7 @@ function system_resolvconf_generate($dynupdate = false)
 
 	fwrite($fd, $resolvconf);
 	fclose($fd);
-	chmod("{$g['varetc_path']}/resolv.conf", 0644);
+	chmod('/etc/resolv.conf', 0644);
 
 	if (!file_exists("/var/run/booting")) {
 		/* restart dhcpd (nameservers may have changed) */

src/etc/rc

@@ -175,10 +175,8 @@ if [ ! -L /etc/hosts ]; then
 	/bin/ln -s /var/etc/hosts /etc/hosts
 fi
 
-if [ ! -L /etc/resolv.conf ]; then
-    /bin/rm -rf /etc/resolv.conf
-    /bin/ln -s /var/etc/resolv.conf /etc/resolv.conf
-fi
+# Remove symlinks that are no longer needed
+if [ -L /etc/resolv.conf ]; then rm /etc/resolv.conf; fi
 
 # Setup compatibility link for packages that
 # have trouble overriding the PREFIX configure

src/www/status_interfaces.php

 <?php
+
 /*
 	Copyright (C) 2014-2015 Deciso B.V.
 	Copyright (C) 2009 Scott Ullrich <sullrich@gmail.com>.
@@ -305,7 +306,7 @@ include("head.inc");
 									<?=htmlspecialchars($ifinfo['gatewayv6']);?>
 								</td>
 							</tr>
-							<?php endif; if ($ifdescr == "wan" && file_exists("{$g['varetc_path']}/resolv.conf")): ?>
+							<?php endif; if ($ifdescr == 'wan' && file_exists('/etc/resolv.conf')): ?>
 							<tr>
 							<td width="22%" class="vncellt"><?=gettext("ISP DNS servers");?></td>
 							<td width="78%" class="listr">