remove deprecated ElementLinkVector usage
Basically the same as this https://gitlab.cern.ch/atlas/athenaprivate1/merge_requests/12210#note_1690146 but for the master branch
Former-commit-id: 9ee46528d8f8b6a4af33343605c92a804681af98
Please be advised that registry.cern.ch registry (Registry Service) will be unavailable next Monday, March 10th starting at 08:00h (Geneva time) for a short period of time. This may cause temporary disruptions to your workflows. Further information: OTG0154905
Basically the same as this https://gitlab.cern.ch/atlas/athenaprivate1/merge_requests/12210#note_1690146 but for the master branch
Former-commit-id: 9ee46528d8f8b6a4af33343605c92a804681af98