cleaning up DeployerEjbTest to avoid to make other tests failling

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1621607 13f79535-47bb-0310-9956-ffa450edef68
no need to access a static var through an instance ;)

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1621608 13f79535-47bb-0310-9956-ffa450edef68