Revert of Response construction with a ReadableStream

third_party/WebKit/Source/bindings/core/v8/V8IteratorResultValue.cpp

 // Copyright 2014 The Chromium 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 "config.h"
 #include "bindings/core/v8/V8IteratorResultValue.h"
 
 namespace blink {
 
 v8::Local<v8::Object> v8IteratorResultValue(v8::Isolate* isolate, bool done, v8::Local<v8::Value> value)
 {
     v8::Local<v8::Object> result = v8::Object::New(isolate);
     if (value.IsEmpty())
         value = v8::Undefined(isolate);
     if (!v8CallBoolean(result->Set(isolate->GetCurrentContext(), v8String(isolate, "done"), v8Boolean(done, isolate)))
         || !v8CallBoolean(result->Set(isolate->GetCurrentContext(), v8String(isolate, "value"), value)))
         return v8::Local<v8::Object>();
     return result;
 }
 
-v8::MaybeLocal<v8::Value> v8UnpackIteratorResult(ScriptState* scriptState, v8::Local<v8::Object> result, bool* done)
-{
-    v8::MaybeLocal<v8::Value> maybeValue = result->Get(scriptState->context(), v8String(scriptState->isolate(), "value"));
-    if (maybeValue.IsEmpty())
-        return maybeValue;
-    v8::Local<v8::Value> doneValue;
-    if (!v8Call(result->Get(scriptState->context(), v8String(scriptState->isolate(), "done")), doneValue)
-        || !v8Call(doneValue->BooleanValue(scriptState->context()), *done)) {
-        return v8::MaybeLocal<v8::Value>();
-    }
-    return maybeValue;
-}
-
 } // namespace blink