[mutter] cogl/tests: Remove test-materials

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 4b5abdc9884f5ab6b29421f9d110d6b1fd93e0ef
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Nov 22 11:44:28 2019 +0100

    cogl/tests: Remove test-materials
    
    It wasn't compiled, nor ported to the new test suite, and tests
    deprecated functionality that are being removed. Lets drop it.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/935

 cogl/tests/conform/meson.build      |   1 -
 cogl/tests/conform/test-materials.c | 255 ------------------------------------
 2 files changed, 256 deletions(-)
---
diff --git a/cogl/tests/conform/meson.build b/cogl/tests/conform/meson.build
index becce36fd..3e1bc1596 100644
--- a/cogl/tests/conform/meson.build
+++ b/cogl/tests/conform/meson.build
@@ -45,7 +45,6 @@ cogl_test_conformance_sources = [
 ]
 
 #unported = [
-#  "test-materials.c",
 #  "test-viewport.c",
 #  "test-multitexture.c",
 #  "test-npot-texture.c",