[mutter] cogl: Remove unported test-vertex-buffer-mutability

[Jonas Ådahl <jadahl src gnome org>]

commit 13fd21306414cdf91b4b5c18af1bd810d854cc54
Author: Adam Jackson <ajax redhat com>
Date:   Tue Nov 5 13:17:49 2019 -0500

    cogl: Remove unported test-vertex-buffer-mutability
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/933

 cogl/tests/conform/meson.build                     |   1 -
 cogl/tests/conform/test-vertex-buffer-mutability.c | 198 ---------------------
 2 files changed, 199 deletions(-)
---
diff --git a/cogl/tests/conform/meson.build b/cogl/tests/conform/meson.build
index b8c3c0749..b36467593 100644
--- a/cogl/tests/conform/meson.build
+++ b/cogl/tests/conform/meson.build
@@ -56,7 +56,6 @@ cogl_test_conformance_sources = [
 #  "test-texture-pixmap-x11.c",",
 #  "test-vertex-buffer-contiguous.c",
 #  "test-vertex-buffer-interleved.c",
-#  "test-vertex-buffer-mutability.c",
 #]
 
 cogl_test_conformance_includes = [