Merge pull request #7043 from nextcloud/backport/7042/stable-3.14

[stable-3.14] on windows use QWidget native platform style

src/gui/main.cpp

@@ -74,16 +74,6 @@ int main(int argc, char **argv)
 
     OCC::Application app(argc, argv);
 
-#ifdef Q_OS_WIN
-    // The Windows style still has pixelated elements with Qt 5.6,
-    // it's recommended to use the Fusion style in this case, even
-    // though it looks slightly less native. Check here after the
-    // QApplication was constructed, but before any QWidget is
-    // constructed.
-    if (app.devicePixelRatio() > 1)
-        QApplication::setStyle(QStringLiteral("fusion"));
-#endif // Q_OS_WIN
-
 #ifndef Q_OS_WIN
     signal(SIGPIPE, SIG_IGN);
 #endif