Revert of [snapshot] Move builtins generation into mksnapshot

src/setup-isolate-full.cc

-// Copyright 2017 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/setup-isolate.h"
-
-#include "src/base/logging.h"
-#include "src/interpreter/setup-interpreter.h"
-#include "src/isolate.h"
-
-namespace v8 {
-namespace internal {
-
-void SetupIsolateDelegate::SetupBuiltins(Isolate* isolate,
-                                         bool create_heap_objects) {
-#ifdef V8_GYP_BUILD
-  // Compatibility hack to keep the deprecated GYP build working.
-  if (create_heap_objects) {
-    SetupBuiltinsInternal(isolate);
-  }
-  return;
-#endif
-  DCHECK(create_heap_objects);
-  SetupBuiltinsInternal(isolate);
-}
-
-void SetupIsolateDelegate::SetupInterpreter(
-    interpreter::Interpreter* interpreter, bool create_heap_objects) {
-#ifdef V8_GYP_BUILD
-  // Compatibility hack to keep the deprecated GYP build working.
-  if (create_heap_objects) {
-    interpreter::SetupInterpreter::InstallBytecodeHandlers(interpreter);
-  }
-  return;
-#endif
-  DCHECK(create_heap_objects);
-  interpreter::SetupInterpreter::InstallBytecodeHandlers(interpreter);
-}
-
-}  // namespace internal
-}  // namespace v8