Replace _LIBCPP_HAS_NO_DELETED_FUNCTIONS with _LIBCPP_CXX03_LANG

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291278 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/ostream b/include/ostream
index be35f2e..3d9be8b 100644
--- a/include/ostream
+++ b/include/ostream
@@ -179,7 +179,7 @@
     void swap(basic_ostream& __rhs)
     { basic_ios<char_type, traits_type>::swap(__rhs); }
 
-#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
+#ifndef _LIBCPP_CXX03_LANG
     basic_ostream           (const basic_ostream& __rhs) = delete;
     basic_ostream& operator=(const basic_ostream& __rhs) = delete;
 #else