The function was incorrectly documented as enabling policy checking.

Fixes: CVE-2023-0466
Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NPaul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20564)
Signed-off-by: Ncode4lala <fengziteng2@huawei.com>