Remove unused String::Copy in Math (try to fix fdo#36634)
Remove unused String::Copy in Math (try to fix fdo#36634)

Change-Id: I4a5618a7ef17a74edd036c34d748715d186f6528
Reviewed-on: https://gerrit.libreoffice.org/4457
Reviewed-by: Fridrich Strba <cc5239b4c84e795cbd430bca0f77cadba002516f@documentfoundation.org>
Tested-by: Fridrich Strba <cc5239b4c84e795cbd430bca0f77cadba002516f@documentfoundation.org>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core