Fix noCopyConstructor and noOperatorEq warnings in tools/triage/mainwindow.h

tools/triage/mainwindow.h

@@ -13,7 +13,9 @@ class MainWindow : public QMainWindow {
 
 public:
     explicit MainWindow(QWidget *parent = 0);
+    MainWindow(const MainWindow &) = delete;
     ~MainWindow();
+    MainWindow &operator=(const MainWindow &) = delete;
 
 public slots:
     void loadFile();