message: Remove unused variable _PRODUCT_NONE
diff: @@ -36,7 +36,6 @@ static const Image* FACTORY_UG = nullptr;
  static const Image* FACTORY_IMAGE = nullptr;
  std::array<const Image*, ProductType::PRODUCT_COUNT> PRODUCT_IMAGE_ARRAY;
  -static const Image* _PRODUCT_NONE = nullptr;
  static std::string FACTORY_STATUS;
  static const std::string RESOURCES_REQUIRED = "Resources Required";
  @@ -92,8 +91,6 @@ void FactoryReport::init()
  PRODUCT_IMAGE_ARRAY[ProductType::PRODUCT_CLOTHING] = &imageCache.load("ui/interface/product_clothing.png");
  PRODUCT_IMAGE_ARRAY[ProductType::PRODUCT_MEDICINE] = &imageCache.load("ui/interface/product_medicine.png");
  - _PRODUCT_NONE = &imageCache.load("ui/interface/product_none.png");
  -
  add(&lstFactoryList, 10, 63);
  lstFactoryList.selectionChanged().connect(this, &FactoryReport::lstFactoryListSelectionChanged);
  