Merge pull request #38948 from beccadax/the-copypasta-is-stale

[NFC] Factor out ASTContext `operator new`s

lib/AST/ProtocolConformance.cpp

@@ -186,13 +186,6 @@ ProtocolConformanceRef::getWitnessByName(Type type, DeclName name) const {
   return getConcrete()->getWitnessDeclRef(requirement);
 }
 
-void *ProtocolConformance::operator new(size_t bytes, ASTContext &context,
-                                        AllocationArena arena,
-                                        unsigned alignment) {
-  return context.Allocate(bytes, alignment, arena);
-
-}
-
 #define CONFORMANCE_SUBCLASS_DISPATCH(Method, Args)                          \
 switch (getKind()) {                                                         \
   case ProtocolConformanceKind::Normal:                                      \