[intrinsics] Remove unused intrinsic %_IncrementStatsCounter.

src/runtime/runtime-internal.cc

Index: src/runtime/runtime-internal.cc
diff --git a/src/runtime/runtime-internal.cc b/src/runtime/runtime-internal.cc
index e5ff7006960d4cabff83fac08c1b1164bb6ee258..944073d32121f564fe486f6fdfca8180c9e2b905 100644
--- a/src/runtime/runtime-internal.cc
+++ b/src/runtime/runtime-internal.cc
@@ -357,18 +357,6 @@ RUNTIME_FUNCTION(Runtime_IS_VAR) {
 }
 
 
-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) {