[cleanup] Remove unnecessary Scope::RareData::operator new

src/ast/scopes.h

Index: src/ast/scopes.h
diff --git a/src/ast/scopes.h b/src/ast/scopes.h
index 071ed62d7a05d7ef3714bd5c413a3433a967f563..1947a266c1637d162595d4297d066b8ae42bd24e 100644
--- a/src/ast/scopes.h
+++ b/src/ast/scopes.h
@@ -897,8 +897,6 @@ class V8_EXPORT_PRIVATE DeclarationScope : public Scope {
   Variable* arguments_;
 
   struct RareData : public ZoneObject {
-    void* operator new(size_t size, Zone* zone) { return zone->New(size); }
-
     // Convenience variable; Subclass constructor only
     Variable* this_function = nullptr;