MurmurIce: remove ad-hoc RSA checks in updateCertificate with Server::isKeyForCert().
MurmurIce: remove ad-hoc RSA checks in updateCertificate with Server::isKeyForCert().

The ad-hoc RSA checks in updateCertificate are unnecessary: we already have a
function that can check whether a given certificate belongs to a given private
key: Server::isKeyForCert().

Rip out the old RSA-specific code (which limited updateCertificate() to only
work with RSA keys), with the more general Server::isKeyForCert().

Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble