calc SetNewRangeNames remove useless bool type

Change-Id: I0c8bca04c3d0e318caacfbfa306284153305d8eb
Reviewed-on: https://gerrit.libreoffice.org/12381
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>