LRA performance improvements #161
Description
Replaces https://issues.redhat.com/browse/JBTM-3556
While helping out with the wildfly branch for the LRA feature pack (EAP7-1496-microprofile-lra-feature-pack) I noticed a number of opportunities to remove some cruft from the implementation. I think it is worthwhile committing these. I will raise a PR and then flesh out this description.