Remove `address` register in Discovery
Remove `address` register in Discovery

It used to be the case that this register was very large and required
its own instances. We now host a trimmed down version of this register
in Discovery and it is unnecessary to host it separately to the `multi`
group.

openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java