Remove broken %_Log functionality.

src/codegen.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_CODEGEN_H_
 #define V8_CODEGEN_H_
 
 #include "code-stubs.h"
 #include "runtime.h"
 
@@ skipping 61 matching lines @@
   static void MakeCodePrologue(CompilationInfo* info, const char* kind);
 
   // Allocate and install the code.
   static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
                                        Code::Flags flags,
                                        CompilationInfo* info);
 
   // Print the code after compiling it.
   static void PrintCode(Handle<Code> code, CompilationInfo* info);
 
-  static bool ShouldGenerateLog(Isolate* isolate, Expression* type);
-
   static bool RecordPositions(MacroAssembler* masm,
                               int pos,
                               bool right_here = false);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
 };
 
 
 // Results of the library implementation of transcendental functions may differ
@@ skipping 22 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(ElementsTransitionGenerator);
 };
 
 static const int kNumberDictionaryProbes = 4;
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODEGEN_H_