Follow up on WFCORE-7297 - this has never worked for core artifacts to begin with.

The org.jboss.as.model.test.ModelTestControllerVersion#getMavenGav is legacy and problematic.

First of all, the method is incorrectly named - it's not a getter of any sorts.

Using both 'maven' and 'gav' in the same method is redundant, GAV is a maven concept.

Moreover, GAV should be all caps as it's already an abbreviation.

It makes use of irrelevant org.jboss.as.model.test.ModelTestControllerVersion#getArtifactIdPrefix which was last used in EAP 6.