[gn build] Port 0eebb48

Author: llvmgnsyncbot

llvm/utils/gn/secondary/libcxx/include/BUILD.gn

@@ -847,8 +847,6 @@ if (current_toolchain == default_toolchain) {
       "__type_traits/is_implicitly_default_constructible.h",
       "__type_traits/is_integral.h",
       "__type_traits/is_literal_type.h",
-      "__type_traits/is_member_function_pointer.h",
-      "__type_traits/is_member_object_pointer.h",
       "__type_traits/is_member_pointer.h",
       "__type_traits/is_nothrow_assignable.h",
       "__type_traits/is_nothrow_constructible.h",