On active channels there is a quick option to remove the channel. However when on a channel that is no longer active you get the message "this channel is no longer available" but no way that I can find to delete it. How do I delete it from my home channel list.
If they were private channels, then sometimes they don't follow all the Roku rules. Apps from the Channel Store should allow you to hit the Options (asterisk) button when the app is highlighted on the Home screen and a menu allow you to remove.
You may want to PM the moderator for assistance in getting them removed from your account.