Moved all the content of the DDK files ntdef.h and ntddk.h to
winternl.h.

diff --git a/dlls/msvcrt/dir.c b/dlls/msvcrt/dir.c
index 623d3b6..b7e0acc 100644
--- a/dlls/msvcrt/dir.c
+++ b/dlls/msvcrt/dir.c
@@ -25,7 +25,7 @@
 #include "wine/port.h"
 
 #include <time.h>
-#include "ntddk.h"
+#include "winternl.h"
 #include "wine/unicode.h"
 #include "msvcrt.h"
 #include "ms_errno.h"