2f6fe3a268 has made calls to
QApplicationPrivate::setActiveWindow() redundant.
Remove redundant calls.
Task-number: QTBUG-121488
Change-Id: I0271f3baf718ca5ae03464bbd415cd0feaa9087d
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>