EventInfoTag builder cleanup
This MR cleans EventInfoTagBuilder
and makes xAOD::EventInfo
mandatory.
As discussed in ATEAM-643 all existing unit tests have been fixed (separate MRs). Other job options might have to be updated in the future by their users. As there were very little tests actually to be fixed, we assume that most of the non-tested configuration is fine.
/cc @gemmeren
Edited by Tadej Novak