ColdFusion Server: HA install to single server install

Currently we have 2 CF servers configured in a cluster in failover HA mode that connect to a SAN, so only one server is active at a time. We are going to be changing this configuration by implenting load balancers and having both servers active. But there are two questions that I can't seem to find answers to:

1) Since ColdFusion was installed in HA mode and not single server do we have to uninstall CF on each server and re-install CF as single server on each of our web servers? Or can we leave the HA install of CF as it is?

2) If we do have to re-install CF in single server mode do we need to purchase a second license for CF?

Thanks for the help in advance!