Replace template_util.h stuff with C++11 <type_traits>

third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits

Index: third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits
diff --git a/third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits b/third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits
index 9f11fd4a8a234d2649494f74cd8c15060e1d6c5c..e56c220a20bfedd9f5ac5eccfbe3250aef6b7c4b 100644
--- a/third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits
+++ b/third_party/crashpad/crashpad/compat/non_cxx11_lib/type_traits
@@ -30,6 +30,11 @@ struct remove_reference { using type = T; };
 template <class T>
 struct remove_reference<T&> { using type = T; };
 
+template <typename T, typename S>
+struct is_same { enum { value = false }; };
+template <typename T>
+struct is_same<T, T> { enum { value = true }; };
+
 }  // namespace std
 
 #endif  // CXX_LIBRARY_VERSION