Our @Transactional interceptor also tries to handle @PersistenceContexts

Our @Transactional interceptor also tries to handle @PersistenceContext. But this can lead to issues in an EE server.

A @PersistenceContext usually is bound to a JTA transaction and must not be controlled manually. Doing so will cause Exeptions. Thus we should remove this feature.

This originally was intended for Java SE usage where a Persistence.createEntityManagerFactory().createEntityManager(); gets injected via e.g. OWBs simple resource plugin. A way to achieve the same would be to rewrite @PersistenceContext to corresponding @Inject with a Qualifier if needed.