Using a zero width does not work on gtk; this set_column_visible() method
was introduced in b1654a57b5
Change-Id: I1efbdfcb3a8b7224d066400501e9d68abc5c7a2c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/199538
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Reviewed-by: Heiko Tietze <heiko.tietze@documentfoundation.org>
Common User Interface (cui)
It was moved out from svx in DEV300m68:
http://www.mail-archive.com/dev@openoffice.org/msg12925.html
It contains dialogs used by more than one application, e.g. paragraph properties.