SECRETS: Return ENOENT when_deleting a non-existent secret
For this, just make use of the sysdb_error_to_errno() function.
Resolves:
https://fedorahosted.org/sssd/ticket/3125
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>