diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index fdb3872903..6f0f39a344 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -9382,12 +9382,6 @@ bool QWidget::event(QEvent *event)
         d->renderToTextureReallyDirty = 1;
 #endif
         break;
-    case QEvent::PlatformSurface: {
-        auto surfaceEvent = static_cast<QPlatformSurfaceEvent*>(event);
-        if (surfaceEvent->surfaceEventType() == QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed)
-            d->setWinId(0);
-        break;
-    }
 #ifndef QT_NO_PROPERTIES
     case QEvent::DynamicPropertyChange: {
         const QByteArray &propName = static_cast<QDynamicPropertyChangeEvent *>(event)->propertyName();