Remove the experimental perf jit support until the license is clarified.

src/log.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_LOG_H_
 #define V8_LOG_H_
 
 #include <string>
 
 #include "src/allocation.h"
@@ skipping 128 matching lines @@
   V(NATIVE_FUNCTION_TAG,            "Function")                         \
   V(NATIVE_LAZY_COMPILE_TAG,        "LazyCompile")                      \
   V(NATIVE_SCRIPT_TAG,              "Script")
 // Note that 'NATIVE_' cases for functions and scripts are mapped onto
 // original tags when writing to the log.
 
 
 class JitLogger;
 class PerfBasicLogger;
 class LowLevelLogger;
-class PerfJitLogger;
 class Sampler;
 
 class Logger {
  public:
   enum StartEnd { START = 0, END = 1 };
 
 #define DECLARE_ENUM(enum_item, ignore) enum_item,
   enum LogEventsAndTags {
     LOG_EVENTS_AND_TAGS_LIST(DECLARE_ENUM)
     NUMBER_OF_LOG_EVENTS
@@ skipping 234 matching lines @@
   friend class EventLog;
   friend class Isolate;
   friend class TimeLog;
   friend class Profiler;
   template <StateTag Tag> friend class VMState;
   friend class LoggerTestHelper;
 
   bool is_logging_;
   Log* log_;
   PerfBasicLogger* perf_basic_logger_;
-  PerfJitLogger* perf_jit_logger_;
   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_;
 
   base::ElapsedTimer timer_;
 
@@ skipping 113 matching lines @@
                                  int length) = 0;
 
   NameBuffer* name_buffer_;
 };
 
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_LOG_H_