gnome3.mutter: remove stale patches

pkgs/desktops/gnome-3/core/mutter/default.nix

@@ -28,10 +28,6 @@ stdenv.mkDerivation rec {
       --prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH"
   '';
 
-  patches = [
-    ./x86.patch # ./math.patch
-  ];
-
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {

pkgs/desktops/gnome-3/core/mutter/math.patch

@@ -1,10 +0,0 @@
---- mutter-3.18.0/src/backends/meta-cursor-renderer.c.orig	2015-09-23 13:54:31.297523343 +0200
-+++ mutter-3.18.0/src/backends/meta-cursor-renderer.c	2015-09-23 13:54:43.728271766 +0200
-@@ -31,6 +31,7 @@
- 
- #include <cogl/cogl.h>
- #include <clutter/clutter.h>
-+#include <math.h>
- 
- #include "meta-stage.h"
- 

pkgs/desktops/gnome-3/core/mutter/x86.patch

@@ -1,20 +0,0 @@
---- a/src/core/window.c	2015-05-26 10:52:41.382834963 +0200
-+++ b/src/core/window.c	2015-05-26 10:53:03.039948034 +0200
-@@ -3499,7 +3499,7 @@
- 
- static MetaMonitorInfo *
- find_monitor_by_winsys_id (MetaWindow *window,
--                           guint       winsys_id)
-+                           gint       winsys_id)
- {
-   int i;
- 
-@@ -3618,7 +3618,7 @@
-    */
- 
-   gboolean did_placement;
--  guint old_output_winsys_id;
-+  gint old_output_winsys_id;
-   MetaRectangle unconstrained_rect;
-   MetaRectangle constrained_rect;
-   MetaMoveResizeResultFlags result = 0;