Revert of [builtins] migrate C++ String Iterator builtins to baseline TurboFan

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 991af0954799c3151021042c41f3d870711910fe..9d67e627e5e69f151dea840e172d4179dab79cef 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1440,17 +1440,9 @@
         factory->NewStringFromAsciiChecked("String Iterator"),
         static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
 
-    Handle<JSFunction> next =
-        InstallFunction(string_iterator_prototype, "next", JS_OBJECT_TYPE,
-                        JSObject::kHeaderSize, MaybeHandle<JSObject>(),
-                        Builtins::kStringIteratorPrototypeNext);
-
-    // Set the expected parameters for %StringIteratorPrototype%.next to 0 (not
-    // including the receiver), as required by the builtin.
-    next->shared()->set_internal_formal_parameter_count(0);
-
-    // Set the length for the function to satisfy ECMA-262.
-    next->shared()->set_length(0);
+    InstallFunction(string_iterator_prototype, "next", JS_OBJECT_TYPE,
+                    JSObject::kHeaderSize, MaybeHandle<JSObject>(),
+                    Builtins::kStringIteratorPrototypeNext);
 
     Handle<JSFunction> string_iterator_function = CreateFunction(
         isolate, factory->NewStringFromAsciiChecked("StringIterator"),