Fix warning about unused initial value for local variable.
Fix warning about unused initial value for local variable.

EuropeanSpallationSource/openxal,openxal/openxal,openxal/openxal,luxiaohan/openxal-csns-luxh,EuropeanSpallationSource/openxal,luxiaohan/openxal-csns-luxh,EuropeanSpallationSource/openxal,luxiaohan/openxal-csns-luxh,EuropeanSpallationSource/openxal,EuropeanSpallationSource/openxal,openxal/openxal,openxal/openxal,openxal/openxal,luxiaohan/openxal-csns-luxh