[IC] Delete unused AddessIsOptimizedCode function.

src/ic/ic.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_IC_H_
 #define V8_IC_H_
 
 #include "src/ic/ic-state.h"
 #include "src/macro-assembler.h"
 #include "src/messages.h"
@@ skipping 73 matching lines @@
  protected:
   Address fp() const { return fp_; }
   Address pc() const { return *pc_address_; }
   Isolate* isolate() const { return isolate_; }
 
   // Get the shared function info of the caller.
   SharedFunctionInfo* GetSharedFunctionInfo() const;
   // Get the code object of the caller.
   Code* GetCode() const;
 
-  bool AddressIsOptimizedCode() const;
   inline bool AddressIsDeoptimizedCode() const;
   inline static bool AddressIsDeoptimizedCode(Isolate* isolate,
                                               Address address);
 
   // Set the call-site target.
   inline void set_target(Code* code);
   bool is_vector_set() { return vector_set_; }
 
   bool UseVector() const {
     bool use = ICUseVector(kind());
@@ skipping 398 matching lines @@
 
 // Helper for BinaryOpIC and CompareIC.
 enum InlinedSmiCheck { ENABLE_INLINED_SMI_CHECK, DISABLE_INLINED_SMI_CHECK };
 void PatchInlinedSmiCode(Isolate* isolate, Address address,
                          InlinedSmiCheck check);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_IC_H_