fdo#75380: Let's not always set the line style to NONE here.

This one line guarantees that no matter what the real line style is,
it will be ignored.

Change-Id: I3bceaf49ce13ddb42ceb56750d8a4ccfef54033b
(cherry picked from commit 6053491532a5d9954caaa4abf09af30850f0cb94)
Reviewed-on: https://gerrit.libreoffice.org/10672
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>