Revert "Workaround a notification test issue on F35 KDE"
    
    This reverts commit a35befab8c3106a2cd39c4e74657534b815222a3. Per
    https://openqa.fedoraproject.org/tests/1867885#step/desktop_notifications/30
    and https://openqa.fedoraproject.org/tests/1932066#step/desktop_notifications/30
    , in both F37 and Rawhide, clicking away an akonadi notification
    no longer closes the panel, so it looks like we don't need this
    any more.