sw34bf01: #i114412#: calc.cxx: apply patch by dtardon:  remove dubious delete and refactor the remaining code a bit
sw34bf01: #i114412#: calc.cxx: apply patch by dtardon:
 remove dubious delete and refactor the remaining code a bit
JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core