-removing unused internal deprecated "invoke" methods from all the containers and the RpcContainer interface 
-some cleaning up and cosmetic changes to StatelessContainer and StatelessInstanceManager
-StatelessContainer: removing unused internal "public" methods (getSecurityService and getInstanceManager)
-StatelessContainer: removing unnecessary "createEJBObject" method
-removing unused classes: RestrictedUserTransaction, RpcContainerWrapper and TransactionAttribute


git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1462055 13f79535-47bb-0310-9956-ffa450edef68