Remove some outdated constructs from tests

test/bind_stdcall_test.cpp

@@ -30,18 +30,7 @@ int main()
 #define BOOST_BIND_ENABLE_STDCALL
 
 #include <boost/bind/bind.hpp>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(push, 3)
-#endif
-
-#include <iostream>
-
-#if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
-#pragma warning(pop)
-#endif
-
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 
 using namespace boost::placeholders;