[PATCH] Remove --enable-obsolete-rpc configure flag

[Florian Weimer]

* Szabolcs Nagy:

> * Petr Vorel <pvorel@suse.cz> [2020-07-11 20:15:08 +0200]:
>> > Built with build-many-glibcs.py, with no new failures (i686-gnu is
>> > currently broken and in the process of being fixed).
>> Thanks a lot for additional testing. Looks like my fixing of missing /etc/rpc
>> is not needed any more (I haven't tested the build but I guess you'd notice).
>
> build-many-glibcs does not run execution tests and
> non-empty /etc is needed for the container tests.
> i dont know if that issue is fixed.

We still install /etc/rpc, but from the inet subdirectory, so things
should work out for containers exactly as before.

Thanks,
Florian