No need to suggest showing redlines beyond 250 changes anymore.

Change-Id: Ia219a4eb3af64079979538b8ab4aaf2a94ec19c8
Reviewed-on: https://gerrit.libreoffice.org/65294
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
(cherry picked from commit 866f10e7)