[mutter] cogl: Remove unused cogl-deprecated.h

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

commit 793c2ac58de469b3930071337d16188579471052
Author: Adam Jackson <ajax redhat com>
Date:   Tue Oct 22 13:54:20 2019 -0400

    cogl: Remove unused cogl-deprecated.h
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/896

 cogl/cogl/cogl-deprecated.h | 43 -------------------------------------------
 cogl/cogl/cogl.h            |  5 -----
 cogl/cogl/meson.build       |  2 --
 3 files changed, 50 deletions(-)
---
diff --git a/cogl/cogl/cogl.h b/cogl/cogl/cogl.h
index d93cb1b09..fb1b99a14 100644
--- a/cogl/cogl/cogl.h
+++ b/cogl/cogl/cogl.h
@@ -128,11 +128,6 @@
  * code has been migrated down into Cogl! */
 #include <cogl/deprecated/cogl-clutter.h>
 
-/*
- * API deprecations
- */
-#include <cogl/cogl-deprecated.h>
-
 /*
  * Cogl Path api compatability
  *
diff --git a/cogl/cogl/meson.build b/cogl/cogl/meson.build
index 59363b5c5..c2fea5e96 100644
--- a/cogl/cogl/meson.build
+++ b/cogl/cogl/meson.build
@@ -98,8 +98,6 @@ cogl_headers = [
 ]
 
 cogl_nonintrospected_headers = [
-  'cogl-deprecated.h',
-  'cogl-pango.h',
   'cogl-renderer.h',
   'cogl-swap-chain.h',
   'cogl-onscreen-template.h',