Remove some outdated constructs from tests

test/protect_test.cpp

@@ -9,11 +9,12 @@
 
 #include <boost/bind/protect.hpp>
 #include <boost/bind/bind.hpp>
-
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 
 using namespace boost::placeholders;
 
+//
+
 int f(int x)
 {
     return x;