Revert "Issue #1833716 by quicksketch, Wim Leers, effulgentsia: added WYSIWYG:...
Revert "Issue #1833716 by quicksketch, Wim Leers, effulgentsia: added WYSIWYG: Introduce 'Text editors' as part of filter format configuration." Fixing commit credit. This reverts commit ee1b6de6.