[mutter] cogl/meson: Remove uneeded cogl-mutter-config.h generation

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

commit ea0a89bde870c1502d4e066469e262abff3d20c4
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Tue May 21 12:20:04 2019 -0500

    cogl/meson: Remove uneeded cogl-mutter-config.h generation
    
    This was needed until we had autotools in place.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/585

 cogl/cogl/cogl-mutter.h | 2 +-
 cogl/meson.build        | 6 ------
 2 files changed, 1 insertion(+), 7 deletions(-)
---
diff --git a/cogl/cogl/cogl-mutter.h b/cogl/cogl/cogl-mutter.h
index 0f1154e8a..854e0fd09 100644
--- a/cogl/cogl/cogl-mutter.h
+++ b/cogl/cogl/cogl-mutter.h
@@ -31,7 +31,7 @@
 #ifndef __COGL_MUTTER_H___
 #define __COGL_MUTTER_H___
 
-#include "cogl-mutter-config.h"
+#include "cogl-config.h"
 #include "cogl-defines.h"
 
 #include <cogl/cogl-texture.h>
diff --git a/cogl/meson.build b/cogl/meson.build
index 34370ef1a..30e241438 100644
--- a/cogl/meson.build
+++ b/cogl/meson.build
@@ -14,12 +14,6 @@ cogl_config_h = configure_file(
   output: 'cogl-config.h',
   configuration: cdata)
 
-# TODO: Remove this when autotools support is removed
-cogl_mutter_config_h = configure_file(
-  input: 'cogl-config.h.meson',
-  output: 'cogl-mutter-config.h',
-  configuration: cdata)
-
 cogl_pkg_deps = [
   glib_dep,
   gobject_dep,