This has (as I've seen) confuse some users because we put this
information front and center. The internal room ID and it's version
isn't relevant for 99% of users, especially since most of them don't
even have permission to touch these.
Instead, let's do what Element smartly does and put it under an Advanced
page you have to intentionally find. This also has the knock-on effect
of propping up the importance of room aliases, which now appear higher
in the general settings.
