Drop dbusviewer from KDE apps start/stop test

khotkeys was removed from Plasma 6, and qdbusviewer was only on
the live image because khotkeys recommended it, so now it's gone.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

tests/apps_startstop/kde/dbusviewer.pm

@@ -1,25 +0,0 @@
-use base "installedtest";
-use strict;
-use testapi;
-use utils;
-
-# This test checks that QtDbusViewer starts.
-
-sub run {
-    my $self = shift;
-
-    menu_launch_type 'dbusviewer';
-    # Check that it is started
-    assert_screen 'dbusviewer_runs', timeout => 60;
-    # Close the application
-    quit_with_shortcut();
-}
-
-sub test_flags {
-    return {always_rollback => 1};
-}
-
-
-1;
-
-# vim: set sw=4 et: