[Cleanup] Remove dead function

Change-Id: Iaee4c09124d77aa47fc968bb9e508af587d9e3ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864830
Auto-Submit: Victor Gomes <victorgomes@google.com>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64324}

src/objects/arguments-inl.h

@@ -52,34 +52,6 @@ void SloppyArgumentsElements::set_mapped_entry(uint32_t entry, Object object) {
   set(entry + kParameterMapStart, object);
 }
 
-// TODO(danno): This shouldn't be inline here, but to defensively avoid
-// regressions associated with the fix for the bug 778574, it's staying that way
-// until the splice implementation in builtin-arrays.cc can be removed and this
-// function can be moved into runtime-arrays.cc near its other usage.
-bool JSSloppyArgumentsObject::GetSloppyArgumentsLength(Isolate* isolate,
-                                                       Handle<JSObject> object,
-                                                       int* out) {
-  Context context = *isolate->native_context();
-  Map map = object->map();
-  if (map != context.sloppy_arguments_map() &&
-      map != context.strict_arguments_map() &&
-      map != context.fast_aliased_arguments_map()) {
-    return false;
-  }
-  DCHECK(object->HasFastElements() || object->HasFastArgumentsElements());
-  Object len_obj =
-      object->InObjectPropertyAt(JSArgumentsObjectWithLength::kLengthIndex);
-  if (!len_obj.IsSmi()) return false;
-  *out = Max(0, Smi::ToInt(len_obj));
-
-  FixedArray parameters = FixedArray::cast(object->elements());
-  if (object->HasSloppyArgumentsElements()) {
-    FixedArray arguments = FixedArray::cast(parameters.get(1));
-    return *out <= arguments.length();
-  }
-  return *out <= parameters.length();
-}
-
 }  // namespace internal
 }  // namespace v8
 

src/objects/arguments.h

@@ -56,10 +56,6 @@ class JSSloppyArgumentsObject : public JSArgumentsObjectWithLength {
   // Indices of in-object properties.
   static const int kCalleeIndex = kLengthIndex + 1;
 
-  inline static bool GetSloppyArgumentsLength(Isolate* isolate,
-                                              Handle<JSObject> object,
-                                              int* out);
-
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSSloppyArgumentsObject);
 };