[gtk+] Drop an unnecessary include

[Matthias Clasen <matthiasc src gnome org>]

commit 17ee80aafeb9ceff0333c9ee92e1bd712a21e4df
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Apr 2 12:41:24 2014 -0400

    Drop an unnecessary include
    
    These tests are better if they can be built standalone.

 tests/testcombo.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/tests/testcombo.c b/tests/testcombo.c
index c0a5d47..34864d1 100644
--- a/tests/testcombo.c
+++ b/tests/testcombo.c
@@ -14,7 +14,6 @@
  * You should have received a copy of the GNU Library General Public
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
-#include "config.h"
 #include <gtk/gtk.h>
 
 #include <string.h>