bug#33871: 27.0.50; Revert Dired window saved in window configuration

[martin rudalics]

> It's impossible to keep window-start and window-end intact
> when text in the buffer changes.

It would depend on the change.

> Because a function is not writable.

A function name is.

> 'window-restore-killed-buffer-windows' already restores
> point and start of a window, so there is no problem.

OK.  I won't insist.

martin