Uncheck the Format checkbox for your styles and they will no longer affect the folder format -- which is where the columns come from -- and you'll no longer have to edit your styles. Instead you'll just need to edit the global folder formats which all styles will end up using.
(Caveat: At the moment if a style creates folder tabs then it always associates a format with each tab. However, you can edit the tabs, then edit their formats and turn off each page of the formats so that it doesn't change anything.)