[PATCH v3] nss: fix nss_database_lookup2's alternate handling [BZ #27416]

[DJ Delorie]

Andreas Schwab <schwab@linux-m68k.org> writes:
> On Mär 02 2021, DJ Delorie wrote:
>> Do you mean that nss_database_select_default should be removed?
>
> Yes.

I think this is the wrong approach.  I suggest we remove the fallback
info from __nss_database_lookup2's callers and keep the centralized
fallback handling in nss_database.  That puts all the fallback info in
one spot, and means we don't have to parse the defconfig every time it's
used.