tdf#91781 Removal of Format > Columns

Columns tab is available in Format > Page and in Format > Section >
Options which makes this menu entry redundant

Change-Id: Ia637b7fe5c95ba075bad921cacb9d2e41e159cb8
Reviewed-on: https://gerrit.libreoffice.org/39017Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Heiko Tietze <tietze.heiko@googlemail.com>

sw/uiconfig/swriter/menubar/menubar.xml

@@ -453,7 +453,6 @@
       <menu:menuseparator/>
       <menu:menuitem menu:id=".uno:TitlePageDialog"/>
       <menu:menuitem menu:id=".uno:RubyDialog"/>
-      <menu:menuitem menu:id=".uno:FormatColumns"/>
       <menu:menuitem menu:id=".uno:Watermark"/>
       <menu:menuitem menu:id=".uno:EditRegion"/>
       <menu:menuitem menu:id=".uno:FormatAllNotes"/>