Delete mainwindow.h

mainwindow.h

-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include <QMainWindow>
-#include <QLineEdit>
-#include <QRadioButton>
-#include <QVBoxLayout>
-#include <QHBoxLayout>
-#include <QGridLayout>
-#include <QPushButton>
-#include <QVector>
-#include <QPlainTextEdit>
-
-
-QT_BEGIN_NAMESPACE
-namespace Ui { class MainWindow; }
-QT_END_NAMESPACE
-
-class MainWindow : public QMainWindow
-{
-    Q_OBJECT
-
-public:
-    MainWindow(QWidget *parent = nullptr);
-    ~MainWindow();
-
-
-private:
-    Ui::MainWindow *ui;
-    QLineEdit *calcWnd;
-    QRadioButton *regularCalcRadBtn, *engineerCalcRadBtn;
-    QPushButton *resetBtn;
-    QVector<QPlainTextEdit> buttons;
-};
-#endif // MAINWINDOW_H