X509_NAME_delete_entry
LCRYPTO_USED(X509_NAME_delete_entry);
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc);
X509_NAME_delete_entry(nm, i);
LCRYPTO_ALIAS(X509_NAME_delete_entry);
if (X509_NAME_delete_entry(dn_subject, i) == NULL) {