Remove unused methods from RuntimeProfiler

src/log.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 432 matching lines @@
 
   Log* log_;
   LowLevelLogger* ll_logger_;
   JitLogger* jit_logger_;
   List<CodeEventListener*> listeners_;
 
   // Guards against multiple calls to TearDown() that can happen in some tests.
   // 'true' between SetUp() and TearDown().
   bool is_initialized_;
 
-  // Support for 'incremental addresses' in compressed logs:
-  //  LogMessageBuilder::AppendAddress(Address addr)
-  Address last_address_;
-  //  Logger::TickEvent(...)
-  Address prev_sp_;
-  Address prev_function_;
-  //  Logger::MoveEventInternal(...)
-  Address prev_to_;
-  //  Logger::FunctionCreateEvent(...)
-  Address prev_code_;
-
   int64_t epoch_;
 
   friend class CpuProfiler;
 };
 
 
 class CodeEventListener {
  public:
   virtual ~CodeEventListener() {}
 
@@ skipping 70 matching lines @@
                                  int length) = 0;
 
   NameBuffer* name_buffer_;
 };
 
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_LOG_H_