Acts 79 cleanup particle definitions
Fixes ACTS-79 and removes some of the Extrapolation/Fatras related redundant Gaudi files
GitLab Registry scheduled maintenance on Wednesday, October 09th 2024 as of 20:00h Geneva time for a period of 1 hour. Further information under https://cern.ch/otg0152540.
Fixes ACTS-79 and removes some of the Extrapolation/Fatras related redundant Gaudi files