Remove setting old dmz value (#1657)

* Remove setting old dmz value (missed checkin)

* Fix firewall nat check

files/usr/local/bin/mesh-firewall

@@ -37,7 +37,7 @@ LICENSE
 ### Lets export some variables to help other scripts we call later.
 
 #Are we in NAT mode
-if [ "$(/sbin/uci -q get aredn.@dmz[0].mode)" != "0" ]
+if [ "$(/sbin/uci -c /etc/config.mesh -q get setup.globals.dmz_mode)" != "0" ]
 then
   export MESHFW_NATLAN=0
 else

files/usr/local/bin/node-setup

@@ -1039,11 +1039,6 @@ do
 end
 write_all("/tmp/new_config/wireless", config)
 
--- indicate whether lan is running in dmz mode
-
-nc:set("aredn", "@dmz[0]", "mode", cfg.dmz_mode)
-nc:commit("aredn")
-
 -- generate the host and ethers files
 local h = io.open("/etc/hosts", "w")
 local e = io.open("/etc/ethers", "w")