[turbofan] JSCreateClosure doesn't have any JS observable side effects.

src/compiler/js-generic-lowering.cc

Index: src/compiler/js-generic-lowering.cc
diff --git a/src/compiler/js-generic-lowering.cc b/src/compiler/js-generic-lowering.cc
index d86c975e8a17d84fe36633e82f104649fe6cc186..3b028c0fc280d2d73cb889d7276e1e5e5e40d603 100644
--- a/src/compiler/js-generic-lowering.cc
+++ b/src/compiler/js-generic-lowering.cc
@@ -398,9 +398,9 @@ void JSGenericLowering::LowerJSCreateClosure(Node* node) {
   CallDescriptor::Flags flags = FrameStateFlagForCall(node);
   Handle<SharedFunctionInfo> const shared_info = p.shared_info();
   node->InsertInput(zone(), 0, jsgraph()->HeapConstant(shared_info));
+  node->RemoveInput(3);  // control
 
-  // Use the FastNewClosurebuiltin only for functions allocated in new
-  // space.
+  // Use the FastNewClosure builtin only for functions allocated in new space.
   if (p.pretenure() == NOT_TENURED) {
     Callable callable = CodeFactory::FastNewClosure(isolate());
     node->InsertInput(zone(), 1,