KCM_OP_DESTROY
case KCM_OP_DESTROY:
opcode == KCM_OP_DESTROY ||
ret = kcm_access(context, client, KCM_OP_DESTROY, ccache);
ret = krb5_kcm_storage_request(context, KCM_OP_DESTROY, &request);
kcmreq_init(&req, KCM_OP_DESTROY, cache);