1. I have a style preference (as do most rubyists I know) for having blank lines between method defs -- so it'd be nice to have a blank line above this method.
2.  That said, I'm not sure that we need this method.  Methods defined here get added to _every_ object in the system, so it behooves us to not unnecessarily define new methods here.  Could the definition of `__rspec_dup` in the file above just use `clone.send :__remove_mock_proxy`?  It's not clear to me why it needs `__mock_proxy` to be called as well.

All that's to say that I think we should remove this method (unless there's something I'm missing here, and there very well may be), but if we keep it, it should have a blank line above it.