bug#24803: Redirection problem with separate minibuffer frame

[martin rudalics]

>  > Reverting the frame.c change seems to fix the problem.
>
> As expected.  Please keep it this way for the moment.  If we don't find
> a better solution, I'll do the revert on master.

I reverted the change now for Emacs 27.2.  Please consider closing this
bug if there are no further complications.

Thanks, martin