Remove content that duplicate /etc/mc/mc.ext. I preserve definition for video files because of https://www.midnight-commander.org/ticket/2773 and as system wide ms.ext file use 'mplayer' which I do not install.

OPTIONS=color,hilite_pet,news
OPTIONS=number_pad
OPTIONS=!autopickup

OPTIONS=name:gavenkoa
OPTIONS=catname:Catty
OPTIONS=dogname:Doggy
OPTIONS=horsename:Loshadka