Remove dead code from LookupResult

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/codegen.h"
@@ skipping 2092 matching lines @@
   bool is_js_array() const {
     return IsJSArrayBits::decode(bit_field_);
   }
 
   ElementsKind elements_kind() const {
     return ElementsKindBits::decode(bit_field_);
   }
 
   virtual Handle<Code> GenerateCode() V8_OVERRIDE;
 
+  static void InstallDescriptors(Isolate* isolate);
+
   virtual void InitializeInterfaceDescriptor(
       CodeStubInterfaceDescriptor* descriptor) V8_OVERRIDE;
 
  private:
   class ElementsKindBits: public BitField<ElementsKind, 0, 8> {};
   class IsJSArrayBits: public BitField<bool, 8, 1> {};
   uint32_t bit_field_;
 
   Major MajorKey() const { return LoadElement; }
   int NotMissMinorKey() const { return bit_field_; }
@@ skipping 534 matching lines @@
 
 
 class CallDescriptors {
  public:
   static void InitializeForIsolate(Isolate* isolate);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_