GaussCherenkov minor cleanup with recent LHCb
As mentioned in Jira LHCBGAUSS-2024, this minor update is to remove reference to Rich::TRID and thus be compatible with recent updates in LHCb.
As mentioned in Jira LHCBGAUSS-2024, this minor update is to remove reference to Rich::TRID and thus be compatible with recent updates in LHCb.