luci-app-firewall: remove unused code

 - unused requirements removed
 - unused variable and foreach loop removed

Signed-off-by: Darius <darius.joksas@teltonika.lt>
[slightly reword commit message]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 3 insertions, 24 deletions

diff --git a/applications/luci-app-firewall/luasrc/model/cbi/firewall/rule-details.lua b/applications/luci-app-firewall/luasrc/model/cbi/firewall/rule-details.lua
index a4763d5dc4..def01c6690 100644
--- a/applications/luci-app-firewall/luasrc/model/cbi/firewall/rule-details.lua
+++ b/applications/luci-app-firewall/luasrc/model/cbi/firewall/rule-details.lua
@@ -1,15 +1,10 @@
 -- Copyright 2008 Steven Barth <steven@midlink.org>
 -- Copyright 2010-2012 Jo-Philipp Wich <jow@openwrt.org>
 -- Licensed to the public under the Apache License 2.0.
-
-local sys = require "luci.sys"
-local utl = require "luci.util"
 local dsp = require "luci.dispatcher"
-local nxo = require "nixio"
-
 local ft = require "luci.tools.firewall"
 local nw = require "luci.model.network"
-local m, s, o, k, v
+local m, s, o, v, _
 
 arg[1] = arg[1] or ""
 
@@ -46,22 +41,6 @@ elseif rule_type == "redirect" then
 
 	m.title = "%s - %s" %{ translate("Firewall - Traffic Rules"), name }
 
-	local wan_zone = nil
-
-	m.uci:foreach("firewall", "zone",
-		function(s)
-			local n = s.network or s.name
-			if n then
-				local i
-				for i in utl.imatch(n) do
-					if i == "wan" then
-						wan_zone = s.name
-						return false
-					end
-				end
-			end
-		end)
-
 	s = m:section(NamedSection, arg[1], "redirect", "")
 	s.anonymous = true
 	s.addremove = false
@@ -154,9 +133,9 @@ elseif rule_type == "redirect" then
 	o.rmempty = false
 	o.datatype = "ip4addr"
 
-	for k, v in ipairs(nw:get_interfaces()) do
+	for _, v in ipairs(nw:get_interfaces()) do
 		local a
-		for k, a in ipairs(v:ipaddrs()) do
+		for _, a in ipairs(v:ipaddrs()) do
 			o:value(a:host():string(), '%s (%s)' %{
 				a:host():string(), v:shortname()
 			})