Revert "fix mem leak"

SineStriker

2023-12-06 129c32448fa36482c46ae9645e18a62722a04e53

 examples/mainwindow/main.cpp

@@ -3,6 +3,10 @@
#include "mainwindow.h"

int main(int argc, char *argv[]) {
    qputenv("QT_WIN_DEBUG_CONSOLE", "1");
    qputenv("QSG_INFO", "1");
    qputenv("QT_WIDGETS_HIGHDPI_DOWNSCALE", "1");
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
    QApplication a(argc, argv);
    MainWindow w;
    w.show();