secur32: Exclude unused headers

[Andrew Talbot]

Changelog:
    secur32: Exclude unused headers.

diff -urN a/dlls/secur32/thunks.c b/dlls/secur32/thunks.c
--- a/dlls/secur32/thunks.c	2006-10-16 11:31:05.000000000 +0100
+++ b/dlls/secur32/thunks.c	2007-05-18 19:55:23.000000000 +0100
@@ -21,7 +21,6 @@
 #include "windef.h"
 #include "winbase.h"
 #include "winnls.h"
-#include "winreg.h"
 #include "winternl.h"
 #include "sspi.h"
 #include "secur32_priv.h"
diff -urN a/dlls/secur32/util.c b/dlls/secur32/util.c
--- a/dlls/secur32/util.c	2007-04-16 13:09:53.000000000 +0100
+++ b/dlls/secur32/util.c	2007-05-18 19:58:30.000000000 +0100
@@ -21,10 +21,8 @@
 #include <stdio.h>
 #include "windef.h"
 #include "winbase.h"
-#include "winnls.h"
 #include "rpc.h"
 #include "sspi.h"
-#include "lm.h"
 #include "secur32_priv.h"
 #include "wine/debug.h"