Revert dependency on wildfly-common added to the protocol module

https://github.com/wildfly/wildfly-core/commit/053d68a5 introduced a dependency of the 'protocol' module on wildfly-common. The 'protocol' module is a dep of 'controller-client' so this means wildfly-common now becomes a dep of anyone wanting to use ModelControllerClient.

I want to remove that dep, as the gains from bringing it in are really tiny; just a slightly more accurate initial sizing param for a couple of maps.