TrigT1CaloCalibConditions: fix compilation with gcc13
Fix compilation with gcc13/C++20 ("arithmetic on a pointer to an
incomplete type") by moving clear and destructor out-of-line.
Relates to ATLINFR-4959.
Edited by Frank Winklmeier
Fix compilation with gcc13/C++20 ("arithmetic on a pointer to an
incomplete type") by moving clear and destructor out-of-line.
Relates to ATLINFR-4959.