Revert of Create JSPromise

src/builtins/builtins.h

 // Copyright 2011 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.
 
 #ifndef V8_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/handles.h"
 
@@ skipping 549 matching lines @@
   TFS(OrdinaryHasInstance, BUILTIN, kNoExtraICState, Compare)                 \
   TFS(ForInFilter, BUILTIN, kNoExtraICState, ForInFilter)                     \
                                                                               \
   /* Promise */                                                               \
   TFJ(PromiseConstructor, 1)                                                  \
   TFJ(PromiseInternalConstructor, 0)                                          \
   TFJ(IsPromise, 1)                                                           \
   CPP(CreateResolvingFunctions)                                               \
   CPP(PromiseResolveClosure)                                                  \
   CPP(PromiseRejectClosure)                                                   \
-  TFJ(PromiseThen, 2)                                                         \
-  TFJ(PromiseCreateAndSet, 2)                                                 \
-  TFJ(PerformPromiseThen, 4)                                                  \
                                                                               \
   /* Proxy */                                                                 \
   CPP(ProxyConstructor)                                                       \
   CPP(ProxyConstructor_ConstructStub)                                         \
                                                                               \
   /* Reflect */                                                               \
   ASM(ReflectApply)                                                           \
   ASM(ReflectConstruct)                                                       \
   CPP(ReflectDefineProperty)                                                  \
   CPP(ReflectDeleteProperty)                                                  \
@@ skipping 262 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_