Remove externals for Predef library.. Now using a custom script to hard-link across from git to svn.

[SVN r85179]

include/boost/predef/platform.h

@@ -0,0 +1,14 @@
+/*
+Copyright Redshift Software, Inc. 2013
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#ifndef BOOST_PREDEF_PLATFORM_H
+#define BOOST_PREDEF_PLATFORM_H
+
+#include <boost/predef/platform/mingw.h>
+/*#include <boost/predef/platform/.h>*/
+
+#endif