Remove global filtered variable :P

diff --git a/TradeFilter.lua b/TradeFilter.lua
index 430a6f8..9793215 100644
--- a/TradeFilter.lua
+++ b/TradeFilter.lua
@@ -329,7 +329,7 @@ local optionsTable = {
 end

  --[[ Locals ]]--
- local filtered = false
+ --local filtered = false
  local redirectFrame = nil
  local debugFrame = nil
  local lastArg1