revert bad firewall patch

SVN-Revision: 3042

openwrt/package/base-files/default/etc/init.d/S45firewall

@@ -81,11 +81,8 @@ iptables -t nat -N postrouting_rule
   iptables -A FORWARD -j forwarding_rule
 
   # allow
-  # if there is bridge splitting this workaround works too
-  for iface in $LAN; do
-  	iptables -A FORWARD -i $iface -o $iface -j ACCEPT
-	[ -z "$WAN" ] || iptables -A FORWARD -i $iface -o $WAN -j ACCEPT
-  done
+  iptables -A FORWARD -i br0 -o br0 -j ACCEPT
+
   # reject (what to do with anything not allowed earlier)
   # uses the default -P DROP