update settings to use new model

outputdialog.h

@@ -19,15 +19,6 @@ class OutputDialog : public QDialog {
     std::vector<OutputColumn> *columns;
     Settings *settings;
 
-    const std::map<std::string, ColumnType> column_names = {
-        {"date", ColumnType::date},
-        {"goods_name", ColumnType::goods_name},
-        {"goods_price_per_unit", ColumnType::goods_price_per_unit},
-        {"goods_quantity", ColumnType::goods_quantity},
-        {"goods_net_weight", ColumnType::goods_net_weight},
-        {"goods_total", ColumnType::goods_total}
-    };
-
 public:
     explicit OutputDialog(QWidget *parent = nullptr, std::vector<Check> *checks = nullptr);
     ~OutputDialog();