Remove the optimized construct stub.

src/stub-cache.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1049 matching lines @@
   // Generates a jump to CallIC miss stub.
   void GenerateMissBranch();
 
   const ParameterCount arguments_;
   const Code::Kind kind_;
   const Code::ExtraICState extra_state_;
   const InlineCacheHolderFlag cache_holder_;
 };
 
 
-class ConstructStubCompiler: public StubCompiler {
- public:
-  explicit ConstructStubCompiler(Isolate* isolate) : StubCompiler(isolate) { }
-
-  Handle<Code> CompileConstructStub(Handle<JSFunction> function);
-
- private:
-  Handle<Code> GetCode();
-};
-
-
 // Holds information about possible function call optimizations.
 class CallOptimization BASE_EMBEDDED {
  public:
   explicit CallOptimization(LookupResult* lookup);
 
   explicit CallOptimization(Handle<JSFunction> function);
 
   bool is_constant_call() const {
     return !constant_function_.is_null();
   }
@@ skipping 32 matching lines @@
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_