Revert of [Tracing] Use TracingCategoryObserver in runtime statistics

src/ic/handler-compiler.cc

Index: src/ic/handler-compiler.cc
diff --git a/src/ic/handler-compiler.cc b/src/ic/handler-compiler.cc
index d36d66cc381da11580a1f59d56a942b9eed33d6c..e82a5204ab934b6c26e99b85c9f14d30b30bb71e 100644
--- a/src/ic/handler-compiler.cc
+++ b/src/ic/handler-compiler.cc
@@ -212,7 +212,7 @@
 
 Handle<Code> NamedLoadHandlerCompiler::CompileLoadCallback(
     Handle<Name> name, Handle<AccessorInfo> callback, Handle<Code> slow_stub) {
-  if (V8_UNLIKELY(FLAG_runtime_stats)) {
+  if (FLAG_runtime_call_stats) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register reg = Frontend(name);
@@ -224,7 +224,7 @@
     Handle<Name> name, const CallOptimization& call_optimization,
     int accessor_index, Handle<Code> slow_stub) {
   DCHECK(call_optimization.is_simple_api_call());
-  if (V8_UNLIKELY(FLAG_runtime_stats)) {
+  if (FLAG_runtime_call_stats) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register holder = Frontend(name);
@@ -578,7 +578,7 @@
     Handle<JSObject> object, Handle<Name> name,
     const CallOptimization& call_optimization, int accessor_index,
     Handle<Code> slow_stub) {
-  if (V8_UNLIKELY(FLAG_runtime_stats)) {
+  if (FLAG_runtime_call_stats) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register holder = Frontend(name);