[base] Remove base::void_t

Use C++17's std::void_t instead.

R=leszeks@chromium.org

Bug: v8:12425
Change-Id: I1367af170505ed97a725e22f6b60cce056f72cb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3568476Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79783}

src/base/template-utils.h

@@ -89,15 +89,6 @@ constexpr bool all(Args... rest) {
   return fold(std::logical_and<>{}, true, rest...);
 }
 
-template <class... Ts>
-struct make_void {
-  using type = void;
-};
-// Corresponds to C++17's std::void_t.
-// Used for SFINAE based on type errors.
-template <class... Ts>
-using void_t = typename make_void<Ts...>::type;
-
 // Corresponds to C++17's std::conjunction
 template <class...>
 struct conjunction : std::true_type {};

src/codegen/tnode.h

@@ -185,7 +185,7 @@ struct MachineRepresentationOf {
 // If T defines kMachineType, then we take the machine representation from
 // there.
 template <class T>
-struct MachineRepresentationOf<T, base::void_t<decltype(T::kMachineType)>> {
+struct MachineRepresentationOf<T, std::void_t<decltype(T::kMachineType)>> {
   static const MachineRepresentation value = T::kMachineType.representation();
 };
 template <class T>