Fix clang-15 warnings

parallel_hashmap/phmap_base.h

@@ -223,29 +223,6 @@ struct disjunction<> : std::false_type {};
 template <typename T>
 struct negation : std::integral_constant<bool, !T::value> {};
 
-template <typename T>
-struct is_trivially_destructible
-    : std::integral_constant<bool, __has_trivial_destructor(T) &&
-      std::is_destructible<T>::value> {};
-
-template <typename T>
-struct is_trivially_default_constructible
-    : std::integral_constant<bool, __has_trivial_constructor(T) &&
-                                   std::is_default_constructible<T>::value &&
-      is_trivially_destructible<T>::value> {};
-
-template <typename T>
-struct is_trivially_copy_constructible
-    : std::integral_constant<bool, __has_trivial_copy(T) &&
-                                   std::is_copy_constructible<T>::value &&
-      is_trivially_destructible<T>::value> {};
-
-template <typename T>
-struct is_trivially_copy_assignable
-    : std::integral_constant<
-          bool, __has_trivial_assign(typename std::remove_reference<T>::type) &&
-      phmap::is_copy_assignable<T>::value> {};
-
 // -----------------------------------------------------------------------------
 // C++14 "_t" trait aliases
 // -----------------------------------------------------------------------------
@@ -1808,9 +1785,10 @@ protected:
 // Also, we should be checking is_trivially_copyable here, which is not
 // supported now, so we use is_trivially_* traits instead.
 template <typename T,
-          bool unused = phmap::is_trivially_copy_constructible<T>::value&&
-              phmap::is_trivially_copy_assignable<typename std::remove_cv<
-                  T>::type>::value&& std::is_trivially_destructible<T>::value>
+          bool unused =
+          std::is_trivially_copy_constructible<T>::value &&
+          std::is_trivially_copy_assignable<typename std::remove_cv<T>::type>::value &&
+          std::is_trivially_destructible<T>::value>
 class optional_data;
 
 // Trivially copyable types