Remove SlidingStateWindow and related code.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 0c3460efb4318a17de2956f7972d5d2ddb4bd61f..95e5340a5a377c54d300fc59d3d86b48d4520282 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -5391,13 +5391,6 @@ void V8::SetAddHistogramSampleFunction(AddHistogramSampleCallback callback) {
       SetAddHistogramSampleFunction(callback);
 }
 
-void V8::EnableSlidingStateWindow() {
-  i::Isolate* isolate = i::Isolate::Current();
-  if (IsDeadCheck(isolate, "v8::V8::EnableSlidingStateWindow()")) return;
-  isolate->logger()->EnableSlidingStateWindow();
-}
-
-
 void V8::SetFailedAccessCheckCallbackFunction(
       FailedAccessCheckCallback callback) {
   i::Isolate* isolate = i::Isolate::Current();