[promises] Remove extra PromiseInit in InternalPromiseThen

src/builtins/builtins-promise.cc

 // Copyright 2016 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/builtins/builtins-promise.h"
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
 #include "src/code-stub-assembler.h"
 #include "src/promise-utils.h"
@@ skipping 207 matching lines @@
   Variable var_deferred_promise(this, MachineRepresentation::kTagged),
       var_deferred_on_resolve(this, MachineRepresentation::kTagged),
       var_deferred_on_reject(this, MachineRepresentation::kTagged);
 
   Branch(WordEqual(promise_fun, constructor), &fast_promise_capability,
          &promise_capability);
 
   Bind(&fast_promise_capability);
   {
     Node* const deferred_promise = AllocateAndInitPromise(context, promise);
-    PromiseInit(deferred_promise);
     var_deferred_promise.Bind(deferred_promise);
     var_deferred_on_resolve.Bind(UndefinedConstant());
     var_deferred_on_reject.Bind(UndefinedConstant());
     Goto(&perform_promise_then);
   }
 
   Bind(&promise_capability);
   {
     // TODO(gsathya): Move this to TF.
     Node* const new_promise_capability = LoadContextElement(
@@ skipping 825 matching lines @@
         CallStub(getproperty_callable, context, promise, then_str);
     Callable call_callable = CodeFactory::Call(isolate);
     Node* const result =
         CallJS(call_callable, context, then, promise, on_resolve, on_reject);
     Return(result);
   }
 }
 
 }  // namespace internal
 }  // namespace v8