I am currently using a Gmail IMAP setup in Mail.app. Everything is working great, and with a Gmail Labs feature called Advanced IMAP Settings, I have hidden all of the main Gmail folders, like All Mail and Starred. I've already integrated folders like Sent and Trash with Mail.app's mailboxes. Because of these, the [Gmail] folder in my account is completely empty. I now wish to remove it from the sidebar, since I don't need it there. How can I accomplish this?