Remove definition to fix qt5 build.

Fetch from: http://git.directfb.org/?p=core/DirectFB.git;a=patch;h=203f78a4193a8ff110dec3c860e0928af1a0a72f

From 203f78a4193a8ff110dec3c860e0928af1a0a72f Mon Sep 17 00:00:00 2001
From: Denis Oliver Kropp <dok@directfb.org>
Date: Wed, 31 Jul 2013 21:56:05 +0200
Subject: [PATCH] libdirect: Remove redefinition of __typeof__!!!

---
 lib/direct/os/linux/glibc/types.h |    1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/direct/os/linux/glibc/types.h b/lib/direct/os/linux/glibc/types.h
index 08e94b2..80cb350 100644
--- a/lib/direct/os/linux/glibc/types.h
+++ b/lib/direct/os/linux/glibc/types.h
@@ -81,7 +81,6 @@ typedef int64_t s64;
 #define __dfb_no_instrument_function__  __attribute__((no_instrument_function))
 #define __constructor__                 __attribute__((constructor))
 #define __destructor__                  __attribute__((destructor))
-#define __typeof__(x)                   __typeof__(x)
 
 #ifndef __func__
 #define __func__                        __FUNCTION__
-- 
1.7.9.5