selftest: Require libarchive for --enable-selftest
This avoids one more case where tests can go missing by removing the conditional.
(Yes, this has happend for other tests in the past).
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue May 15 06:31:03 CEST 2018 on sn-devel-144