[regexp] Remove unused code

src/code-stubs.h

 // Copyright 2012 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_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 60 matching lines @@
   V(LoadConstant)                             \
   V(LoadDictionaryElement)                    \
   V(LoadFastElement)                          \
   V(LoadField)                                \
   /* These should never be ported to TF */    \
   /* because they are either used only by */  \
   /* FCG/Crankshaft or are deprecated */      \
   V(BinaryOpIC)                               \
   V(BinaryOpWithAllocationSite)               \
   V(ToBooleanIC)                              \
-  V(RegExpConstructResult)                    \
   V(TransitionElementsKind)                   \
   /* --- TurboFanCodeStubs --- */             \
   V(AllocateHeapNumber)                       \
   V(AllocateFloat32x4)                        \
   V(AllocateInt32x4)                          \
   V(AllocateUint32x4)                         \
   V(AllocateBool32x4)                         \
   V(AllocateInt16x8)                          \
   V(AllocateUint16x8)                         \
   V(AllocateBool16x8)                         \
@@ skipping 1693 matching lines @@
 
 
 class RegExpExecStub: public PlatformCodeStub {
  public:
   explicit RegExpExecStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpExec);
   DEFINE_PLATFORM_CODE_STUB(RegExpExec, PlatformCodeStub);
 };
 
-// TODO(jgruber): Remove this once all uses in regexp.js have been removed.
-class RegExpConstructResultStub final : public HydrogenCodeStub {
- public:
-  explicit RegExpConstructResultStub(Isolate* isolate)
-      : HydrogenCodeStub(isolate) { }
-
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpConstructResult);
-  DEFINE_HYDROGEN_CODE_STUB(RegExpConstructResult, HydrogenCodeStub);
-};
-
-
 // TODO(bmeurer/mvstanton): Turn CallConstructStub into ConstructICStub.
 class CallConstructStub final : public PlatformCodeStub {
  public:
   explicit CallConstructStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(CallConstruct);
   DEFINE_PLATFORM_CODE_STUB(CallConstruct, PlatformCodeStub);
 };
 
 
@@ skipping 956 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromMachineType(MachineType type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_