Configuration options for experimental CLI features were deprecated in docker 19.03 (3172219932d5d8d8e68715b7495070a1c63f168b), and enabled by default since docker 20.10 (977d3ae046). This field was deprecated inc8f9187157, which is part of the 28.x release, and is unused. This patch removes the field. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>