[mutter] cogl/test-utils: Skip "showing" the onscreen

[Marge Bot <marge-bot src gnome org>]

commit b0ec3a3ad7bb390611448a11b3bbbfb85bda7039
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon Oct 19 22:27:15 2020 +0200

    cogl/test-utils: Skip "showing" the onscreen
    
    Tests pass anyway.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1514>

 cogl/test-fixtures/test-utils.c | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/cogl/test-fixtures/test-utils.c b/cogl/test-fixtures/test-utils.c
index 3e5552a9c9..dad881948d 100644
--- a/cogl/test-fixtures/test-utils.c
+++ b/cogl/test-fixtures/test-utils.c
@@ -178,9 +178,6 @@ test_utils_init (TestFlags requirement_flags,
   if (!cogl_framebuffer_allocate (test_fb, &error))
     g_critical ("Failed to allocate framebuffer: %s", error->message);
 
-  if (onscreen)
-    cogl_onscreen_show (onscreen);
-
   cogl_framebuffer_clear4f (test_fb,
                             COGL_BUFFER_BIT_COLOR |
                             COGL_BUFFER_BIT_DEPTH |