EDIT

An import like CoL is purely for reading and not for editing. Therefore we do not need any auditing.

Are there any other features that we do not need?

Envers listeners are automatically registered if envers is on classpath. To switch them off one needs to set hiberante property hibernate.listeners.envers.autoRegister to false. Alternatively one could use a self written EnversIntegrator

http://www.warski.org/blog/2011/04/envers-and-hibernate-4-0-0-alpha2-automatic-listener-registration/

https://stackoverflow.com/questions/28118004/implementing-conditional-envers-auditing-hibernate-4-3-7-final

https://stackoverflow.com/questions/28118004/implementing-conditional-envers-auditing-hibernate-4-3-7-final

https://docs.jboss.org/envers/docs/