Drop an unused patch

0001-pixbuf-engine-Fix-the-build-with-Werror-format-secur.patch

@@ -1,25 +0,0 @@
-From 46b0c2938293b0495f65a46fdc632b788532639b Mon Sep 17 00:00:00 2001
-From: Kalev Lember <kalevlember@gmail.com>
-Date: Fri, 23 May 2014 11:19:53 +0200
-Subject: [PATCH] pixbuf-engine: Fix the build with -Werror=format-security
-
----
- modules/engines/pixbuf/pixbuf-rc-style.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/modules/engines/pixbuf/pixbuf-rc-style.c b/modules/engines/pixbuf/pixbuf-rc-style.c
-index 4b86e4f..18851e3 100644
---- a/modules/engines/pixbuf/pixbuf-rc-style.c
-+++ b/modules/engines/pixbuf/pixbuf-rc-style.c
-@@ -669,7 +669,7 @@ clear_theme_pixbuf_and_warn (ThemePixbuf **theme_pb,
-                              const char   *message)
- {
-   theme_clear_pixbuf (theme_pb);
--  g_scanner_warn (scanner, message);
-+  g_scanner_warn (scanner, "%s", message);
- }
- 
- static guint
--- 
-1.9.3
-