de4a584 Use existing needle for dismissing KDE update notification

Authored and Committed by adamwill 4 years ago
    Use existing needle for dismissing KDE update notification
    
    @lruzicka added this to the KDE app tests in 71c4e273, but there
    was no need for a new needle as I'd already done the same thing
    in the desktop updates tests; let's just use the same needle.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>