fdo#68064: Do not insert aTempEntry multiple times
fdo#68064: Do not insert aTempEntry multiple times

...and do not let it go out of scope before being used in BigPtrArray::Remove.
(And, en passant, avoid use of reserved identifier, starting with an underscore
followed by a capital letter.)

Change-Id: Ic5730f707601a2070f2eed3ba017650026657df3

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