Revert of Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)

src/tracing/trace-event.h

Index: src/tracing/trace-event.h
diff --git a/src/tracing/trace-event.h b/src/tracing/trace-event.h
index 48454705d56d7ad7eba379165a5b6f6e915203ae..2b3bf9bf92cca8fc5524ee1e644057d43795a0f1 100644
--- a/src/tracing/trace-event.h
+++ b/src/tracing/trace-event.h
@@ -133,7 +133,6 @@
       ->UpdateTraceEventDuration
 
 // Defines atomic operations used internally by the tracing system.
-#define TRACE_EVENT_API_ATOMIC_BYTE v8::base::Atomic8
 #define TRACE_EVENT_API_ATOMIC_WORD v8::base::AtomicWord
 #define TRACE_EVENT_API_ATOMIC_LOAD(var) v8::base::NoBarrier_Load(&(var))
 #define TRACE_EVENT_API_ATOMIC_STORE(var, value) \
@@ -595,31 +594,4 @@
 }  // namespace internal
 }  // namespace v8
 
-// V8 Specific macros
-
-// Runtime calls happen at a high frequency, the following set of macros
-// minimizes the tracing overhead of those calls. A global variable is set
-// when top level V8 API is called, and checked per runtime call.
-extern TRACE_EVENT_API_ATOMIC_BYTE g_runtime_calls_trace_enabled;
-
-#define TRACE_IS_RUNTIME_CALLS_TRACING_ENABLED() \
-  TRACE_EVENT_API_ATOMIC_LOAD(g_runtime_calls_trace_enabled)
-
-#define TRACE_CHECK_AND_SET_RUNTIME_CALLS_TRACING()                            \
-  do {                                                                         \
-    INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(                                    \
-        TRACE_DISABLED_BY_DEFAULT("v8.runtime"));                              \
-    TRACE_EVENT_API_ATOMIC_STORE(g_runtime_calls_trace_enabled,                \
-        INTERNAL_TRACE_EVENT_CATEGORY_GROUP_ENABLED_FOR_RECORDING_MODE() ? 1   \
-                                                                         : 0); \
-  } while (0)
-
-#define TRACE_RUNTIME_CALL(name)                                               \
-  do {                                                                         \
-    if (V8_UNLIKELY(TRACE_IS_RUNTIME_CALLS_TRACING_ENABLED())) {               \
-      INTERNAL_TRACE_EVENT_ADD_SCOPED(TRACE_DISABLED_BY_DEFAULT("v8.runtime"), \
-                                      name);                                   \
-    }                                                                          \
-  } while (0)
-
 #endif  // SRC_TRACING_TRACE_EVENT_H_