[regexp] Port RegExp.prototype[@@replace]

src/string-builder.h

Index: src/string-builder.h
diff --git a/src/string-builder.h b/src/string-builder.h
index 192603f33f98025b7171554b7b2dc5c0eef6be0c..a37630131e07b0263b506c1dac9fae407a3897a9 100644
--- a/src/string-builder.h
+++ b/src/string-builder.h
@@ -174,12 +174,6 @@ class FixedArrayBuilder {
 
   int capacity() { return array_->length(); }
 
-  Handle<JSArray> ToJSArray(Handle<JSArray> target_array) {
-    JSArray::SetContent(target_array, array_);
-    target_array->set_length(Smi::FromInt(length_));
-    return target_array;
-  }
-
 
  private:
   Handle<FixedArray> array_;