[WFCORE-193] : Move org.jboss.as.test.smoke.mgmt.servermodule tests from full to core.

Removing sar deployments.
Simplifying test and updating pom with required dependencies.

Jira: https://issues.jboss.org/browse/WFCORE-193
This should be renamed DeploymentManagementTestCase or something like that. I don't think the "ServerInModule" bit is relevant anymore.