Also remove system-config-language test from KDE app test

This was also dropped:
https://pagure.io/fedora-kickstarts/c/5b5fba2

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

needles/kde/apps/language_runs-noto-grey-20210422.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "xpos": 252,
-      "width": 123,
-      "height": 17,
-      "type": "match",
-      "ypos": 8
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "language_runs"
-  ]
-}

tests/apps_startstop/kde/language.pm

@@ -1,33 +0,0 @@
-use base "installedtest";
-use strict;
-use testapi;
-use utils;
-
-# This test checks that Language starts.
-
-sub run {
-    my $self = shift;
-    
-    # Start the application
-    menu_launch_type 'language';
-    # Deal with confirmation window
-    assert_screen "auth_required";
-    my $password = get_var('USER_PASSWORD', 'weakpassword');
-    type_very_safely $password;
-    send_key 'ret';
-
-    # Check that it is started
-    assert_screen 'language_runs';
-    wait_still_screen 2;
-    # Close the application
-    quit_with_shortcut();
-}
-
-sub test_flags {
-    return {always_rollback => 1};
-}
-
-
-1;
-
-# vim: set sw=4 et: