Remove unused configurable parameters

Removed configurable parameters for ccdbPathGrp and ccdbPathGrpMag.

Author: minjungkim12

PWGHF/D2H/Tasks/taskD0.cxx

@@ -94,8 +94,6 @@ struct HfTaskD0 {
   // ML inference
   Configurable<bool> applyMl{"applyMl", false, "Flag to apply ML selections"};
   Configurable<std::string> ccdbUrl{"ccdbUrl", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};
-  Configurable<std::string> ccdbPathGrp{"ccdbPathGrp", "GLO/GRP/GRP", "Path of the grp file (Run 2)"};
-  Configurable<std::string> ccdbPathGrpMag{"ccdbPathGrpMag", "GLO/Config/GRPMagField", "CCDB path of the GRPMagField object (Run 3)"};
   Configurable<std::string> irSource{"irSource", "ZNC hadronic", "Estimator of the interaction rate (Recommended: pp --> T0VTX, Pb-Pb --> ZNC hadronic)"};
 
   HfEventSelection hfEvSel; // event selection and monitoring