Translated comments in sc/source/ui/drawfunc/. There were still some
left that bin/find-german-comments did not find.
Removed unneccessary comments.

Change-Id: I61c1cadea259bb2a4b14721a25da85e9a9c0753e
Reviewed-on: https://gerrit.libreoffice.org/37530Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>