xAODMissingETAthenaPool: Remove unneeded custom pool converters. (!27378) · Merge requests · atlas / athena

Merged Scott Snyder requested to merge ssnyder/athena:removeConverters.xAODMissingETAthenaPool-20191021 into master Oct 21, 2019

xAOD objects no longer need custom pool converters. Remove those that are no longer needed. Change xAOD converters with versioning to use the templated pool converter, and make the TP class interfaces const.