remove upstreamed patch

0001-embed-remove-non-double-buffer-setting.patch

@@ -1,33 +0,0 @@
-From 88d74c56612773dc350efde57eff97f461f438e6 Mon Sep 17 00:00:00 2001
-From: Lionel Landwerlin <llandwerlin@gmail.com>
-Date: Mon, 29 Aug 2016 19:36:48 +0100
-Subject: [PATCH] embed: remove non double buffer setting
-
-This started causing problems with Gtk+ 3.21. As the documentation explains,
-disabling double buffering might trigger rendering issues.
-
-https://bugzilla.gnome.org/show_bug.cgi?id=769097
----
- clutter-gtk/gtk-clutter-embed.c | 5 -----
- configure.ac                    | 2 +-
- 2 files changed, 1 insertion(+), 6 deletions(-)
-
-diff --git a/clutter-gtk/gtk-clutter-embed.c b/clutter-gtk/gtk-clutter-embed.c
-index 9a01b9e..521afc9 100644
---- a/clutter-gtk/gtk-clutter-embed.c
-+++ b/clutter-gtk/gtk-clutter-embed.c
-@@ -1153,11 +1153,6 @@ gtk_clutter_embed_init (GtkClutterEmbed *embed)
-   /* we accept key focus */
-   gtk_widget_set_can_focus (widget, TRUE);
- 
--  G_GNUC_BEGIN_IGNORE_DEPRECATIONS
--  /* disable double-buffering: it's automatically provided by OpenGL */
--  gtk_widget_set_double_buffered (widget, FALSE);
--  G_GNUC_END_IGNORE_DEPRECATIONS
--
-   /* we own the whole drawing of this widget, including the background */
-   gtk_widget_set_app_paintable (widget, TRUE);
- 
--- 
-2.7.4
-

clutter-gtk.spec

@@ -12,8 +12,6 @@ Group:          Development/Languages
 License:        LGPLv2+
 URL:            http://www.clutter-project.org
 Source0:        http://download.gnome.org/sources/clutter-gtk/1.8/clutter-gtk-%{version}.tar.xz
-# Backported from upstream
-Patch0:         0001-embed-remove-non-double-buffer-setting.patch
 
 BuildRequires:  clutter-devel >= %{clutter_version}
 BuildRequires:  gtk3-devel >= %{gtk3_version}
@@ -39,7 +37,6 @@ clutter-gtk.
 
 %prep
 %setup -q
-%patch0 -p1
 
 
 %build