pkcs11_del_provider
if (pkcs11_del_provider(canonical_provider) == 0)
if ((r = sshbuf_put_u8(msg, pkcs11_del_provider(name) == 0 ?
pkcs11_del_provider(provider_id);
pkcs11_del_provider(provider_id);
int pkcs11_del_provider(char *);
(void)pkcs11_del_provider(options.pkcs11_provider);