Delete dialog.h

dialog.h

-#ifndef DIALOG_H
-#define DIALOG_H
-
-#include <QDialog>
-
-QT_BEGIN_NAMESPACE
-namespace Ui { class Dialog; }
-QT_END_NAMESPACE
-
-class Dialog : public QDialog
-{
-    Q_OBJECT
-
-public:
-    Dialog(QWidget *parent = nullptr);
-    ~Dialog();
-
-private slots:
-    void on_countBtn_2_clicked();
-
-private:
-    Ui::Dialog *ui;
-};
-#endif // DIALOG_H