Drop dnfdragora from KDE app start/stop tests

It's not in the images any more. As aleasto pointed out, we're
actually being sent to Discover to install it, and matching on
*that* screen, which isn't what we intend.

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

needles/kde/apps/dnfdragora_runs-20220112.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "ypos": 9,
-      "type": "match",
-      "height": 14,
-      "xpos": 440,
-      "width": 71
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "dnfdragora_runs"
-  ]
-}

tests/apps_startstop/kde/dnfdragora.pm

@@ -1,28 +0,0 @@
-use base "installedtest";
-use strict;
-use testapi;
-use utils;
-
-# This test checks that DNFDragora starts.
-
-sub run {
-    my $self = shift;
-
-    # Start the application
-    menu_launch_type 'dnfdragora';
-    # Check that it is started
-    assert_screen 'dnfdragora_runs', timeout => 60;
-    sleep 60;
-    wait_still_screen 5;
-    # Close the application
-    quit_with_shortcut();
-}
-
-sub test_flags {
-    return {always_rollback => 1};
-}
-
-
-1;
-
-# vim: set sw=4 et: