diff --git a/libcxx/test/support/msvc_stdlib_force_include.hpp b/libcxx/test/support/msvc_stdlib_force_include.hpp
index 232f522e3878..f2ec35fd05b0 100644
--- a/libcxx/test/support/msvc_stdlib_force_include.hpp
+++ b/libcxx/test/support/msvc_stdlib_force_include.hpp
@@ -73,9 +73,6 @@ const AssertionDialogAvoider assertion_dialog_avoider{};
     // atomic_is_lock_free.pass.cpp needs this VS 2015 Update 2 fix.
     #define _ENABLE_ATOMIC_ALIGNMENT_FIX
 
-    // Silence warnings about raw pointers and other unchecked iterators.
-    #define _SCL_SECURE_NO_WARNINGS
-
     // Silence warnings about features that are deprecated in C++17.
     #define _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS
 #endif // _LIBCXX_IN_DEVCRT
@@ -88,12 +85,4 @@ const AssertionDialogAvoider assertion_dialog_avoider{};
     #define TEST_STD_VER 14
 #endif // _HAS_CXX17
 
-// Simulate library feature-test macros.
-#define __cpp_lib_invoke                         201411
-#define __cpp_lib_void_t                         201411
-
-#if _HAS_CXX17
-    #define __cpp_lib_atomic_is_always_lock_free 201603
-#endif // _HAS_CXX17
-
 #endif // SUPPORT_MSVC_STDLIB_FORCE_INCLUDE_HPP