resolver-conf: remove CZ.NIC cacert for ODVR
ODVR is now using Let's Encrypt certificate and CZ.NIC2-cacert.pem is not used anywhere.
Fixes: 02e6530e ("resolver-conf: update to new ODVR servers")
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ODVR is now using Let's Encrypt certificate and CZ.NIC2-cacert.pem is not used anywhere.
Fixes: 02e6530e ("resolver-conf: update to new ODVR servers")