msxml3: Exclude unused headers

[Andrew Talbot]

Changelog:
    msxml3: Exclude unused headers.

diff -urN a/dlls/msxml3/main.c b/dlls/msxml3/main.c
--- a/dlls/msxml3/main.c	2006-07-24 12:56:26.000000000 +0100
+++ b/dlls/msxml3/main.c	2007-05-14 19:32:16.000000000 +0100
@@ -25,7 +25,6 @@
 #include "windef.h"
 #include "winbase.h"
 #include "winuser.h"
-#include "winreg.h"
 #include "ole2.h"
 #include "msxml2.h"
 
diff -urN a/dlls/msxml3/schema.c b/dlls/msxml3/schema.c
--- a/dlls/msxml3/schema.c	2007-02-28 14:20:48.000000000 +0000
+++ b/dlls/msxml3/schema.c	2007-05-14 19:32:28.000000000 +0100
@@ -26,7 +26,6 @@
 #include "windef.h"
 #include "winbase.h"
 #include "winuser.h"
-#include "winnls.h"
 #include "ole2.h"
 #include "msxml2.h"