smbd: don't leak the fsp if close_file_smb() fails

smbd: don't leak the fsp if close_file_smb() fails

This can happen if DELETE-ON-CLOSE is set, but the deletion fails for some
reason.

The bug was introduced by 1808e5c133474eabc9d3cf91c2a92ec4d92d9fdd.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15417

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jul 10 21:32:32 UTC 2023 on atb-devel-224

(cherry picked from commit 4da50463e1b75c06d5f8c066e8b4eff48186afb0)

Autobuild-User(v4-18-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-18-test): Wed Jul 19 16:23:17 UTC 2023 on atb-devel-224