[gtk/ci-update] Drop the quit-mnemonic reftest

[Matthias Clasen <matthiasc src gnome org>]

commit 1b355ff2e0f776b2472cb55ac5b1c86e4f672a4e
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat May 14 12:52:40 2022 -0400

    Drop the quit-mnemonic reftest
    
    I can't quite figure out what this test was meant
    to test, and how to make it do so in a way that
    does not fall afoul of rendering issues in the GL
    renderer and rounding differences in pango.
    
    Can't win with reftests.

 testsuite/reftests/meson.build          |  3 ---
 testsuite/reftests/quit-mnemonic.css    |  3 ---
 testsuite/reftests/quit-mnemonic.ref.ui | 15 --------------
 testsuite/reftests/quit-mnemonic.ui     | 35 ---------------------------------
 4 files changed, 56 deletions(-)
---
diff --git a/testsuite/reftests/meson.build b/testsuite/reftests/meson.build
index 0b6d0fa84a..791cbe5ca0 100644
--- a/testsuite/reftests/meson.build
+++ b/testsuite/reftests/meson.build
@@ -482,9 +482,6 @@ testdata = [
   'pseudoclass-on-parent.css',
   'pseudoclass-on-parent.ref.ui',
   'pseudoclass-on-parent.ui',
-  'quit-mnemonic.css',
-  'quit-mnemonic.ref.ui',
-  'quit-mnemonic.ui',
   'repeating-radial-gradient-at-beginning.css',
   'repeating-radial-gradient-at-beginning.ref.ui',
   'repeating-radial-gradient-at-beginning.ui',