The wayland-unit test is flaky (see: <https://gitlab.gnome.org/GNOME/mutter/-/issues/4711>).

When disabling the wayland-unit test, the wayland-keyboard test fail to build:

../mutter-49.4/src/tests/wayland-keyboard-tests.c:39:10: fatal error: dummy-client-protocol.h: No such file or directory
   39 | #include "dummy-client-protocol.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~

so disable it as well.

diff --git a/src/tests/meson.build b/src/tests/meson.build
index 8c3773033f..cd259c8c52 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -914,17 +914,6 @@ wayland_test_cases = [
       test_client_executables.get('drm-lease'),
     ],
   },
-  {
-    'name': 'wayland-keyboard',
-    'suite': 'wayland',
-    'sources': [
-      'wayland-keyboard-tests.c',
-      wayland_test_utils,
-    ],
-    'depends': [
-      test_client_executables.get('keyboard'),
-    ],
-  },
   {
     'name': 'wayland-fullscreen',
     'suite': 'wayland',
@@ -966,48 +955,6 @@ wayland_test_cases = [
       test_client_executables.get('buffer-less-viewport-client'),
     ],
   },
-  {
-    'name': 'wayland-unit',
-    'suite': 'wayland',
-    'timeout': 300,
-    'sources': [
-      'wayland-unit-tests.c',
-      dummy_client_header,
-      dummy_server_header,
-      dummy_protocol_code,
-      wayland_test_utils,
-    ],
-    'depends': [
-      test_client,
-      test_client_executables.get('buffer-transform'),
-      test_client_executables.get('cursor-shape'),
-      test_client_executables.get('dma-buf-scanout'),
-      test_client_executables.get('fractional-scale'),
-      test_client_executables.get('fullscreen'),
-      test_client_executables.get('idle-inhibit'),
-      test_client_executables.get('invalid-size-limits-on-map-client'),
-      test_client_executables.get('invalid-subsurfaces'),
-      test_client_executables.get('invalid-xdg-shell-actions'),
-      test_client_executables.get('invalid-geometry'),
-      test_client_executables.get('kms-cursor-hotplug-helper'),
-      test_client_executables.get('service-client'),
-      test_client_executables.get('shm-destroy-before-release'),
-      test_client_executables.get('single-pixel-buffer'),
-      test_client_executables.get('subsurface-corner-cases'),
-      test_client_executables.get('subsurface-parent-unmapped'),
-      test_client_executables.get('subsurface-remap-toplevel'),
-      test_client_executables.get('subsurface-reparenting'),
-      test_client_executables.get('xdg-activation'),
-      test_client_executables.get('xdg-activation-before-mapped'),
-      test_client_executables.get('xdg-apply-limits'),
-      test_client_executables.get('xdg-foreign'),
-      test_client_executables.get('xdg-toplevel-bounds'),
-      test_client_executables.get('xdg-session-management'),
-      test_client_executables.get('xdg-session-management-replace'),
-      test_client_executables.get('xdg-toplevel-tag'),
-      test_client_executables.get('ycbcr'),
-    ],
-  },
 ]
 
 test_cases += wayland_test_cases