revert part of commit 1a35b86: on RSA768 it gives worse results than before
revert part of commit 1a35b86: on RSA768 it gives worse results than before

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs