[intrinsics] Remove unused intrinsic %_IncrementStatsCounter.

src/runtime/runtime-internal.cc

 // Copyright 2014 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.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 339 matching lines @@
 
 #undef CALLSITE_GET
 
 
 RUNTIME_FUNCTION(Runtime_IS_VAR) {
   UNREACHABLE();  // implemented as macro in the parser
   return NULL;
 }
 
 
-RUNTIME_FUNCTION(Runtime_IncrementStatsCounter) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_CHECKED(String, name, 0);
-
-  if (FLAG_native_code_counters) {
-    StatsCounter(isolate, name->ToCString().get()).Increment();
-  }
-  return isolate->heap()->undefined_value();
-}
-
-
 namespace {
 
 bool ComputeLocation(Isolate* isolate, MessageLocation* target) {
   JavaScriptFrameIterator it(isolate);
   if (!it.done()) {
     JavaScriptFrame* frame = it.frame();
     JSFunction* fun = frame->function();
     Object* script = fun->shared()->script();
     if (script->IsScript() &&
         !(Script::cast(script)->source()->IsUndefined())) {
@@ skipping 99 matching lines @@
   std::stringstream stats_stream;
   isolate->counters()->runtime_call_stats()->Print(stats_stream);
   Handle<String> result =
       isolate->factory()->NewStringFromAsciiChecked(stats_stream.str().c_str());
   isolate->counters()->runtime_call_stats()->Reset();
   return *result;
 }
 
 }  // namespace internal
 }  // namespace v8