remove unused

@@ -4,9 +4,6 @@ _G[modname]=M
 package.loaded[modname]=M
 
 local cjson=require "cjson"
-local rate_limit = require "limit_common_flow"
-local iptool=require "iptool"
-local lrucache = require "resty.lrucache"
 local http_request = require "http_request"
 
 
@@ -14,21 +11,6 @@ local cache=lua_context.mal_ip_cache
 local redis_limit_ip=lua_context["redis_limit_ip"]
 
 
-
-function M.in_array(value,arr)
-  if not value then
-   return false
-  end
-  if not arr then
-    return false  
-  end 
-  for k, v in ipairs(arr) do 
-   if value==v then
-    return true
-   end 
-  end
-  return false
-end
  
 -- mal ip controller api --------
 function M:mal_ip()
@@ -38,7 +20,7 @@ function M:mal_ip()
    ngx.header["Content-type"]="application/json;charset=utf-8"
    if not method then
     ngx.say('{"code": 400, "msg": "params error!"}')
-	ngx.exit(ngx.HTTP_OK)
+	 ngx.exit(ngx.HTTP_OK)
    end
    local exists={}
    if method == 'pubAdd' then
@@ -57,7 +39,7 @@ function M:mal_ip()
       t.type="flush"
       redis_limit_ip:cmd("publish","mal_ips",cjson.encode(t))
    elseif method == 'queryAll' then
-      local all_ips=cache:get_keys(0)
+     local all_ips=cache:get_keys(0)
 	  for i,v in pairs(all_ips) do
 	    exists[#exists+1]=string.sub(v,8,string.len(v))
 	  end