To remove an account from your Financial Fitness tracker, head to the Fitness tracker page. In the top right corner press the Accounts visible link. This will list the Groups that are being used to build your graphs.
Toggle OFF the Groups you want to remove from the tracker. These will no longer be included in the data we use to build your graphs. The list of Groups that remain linked will now appear at the top of the page.
To reinstate a Group, simply press the Accounts visible link again and toggle ON individual Groups, or all of them at once.
If you just want to remove an individual account rather than a whole Group, you can set up a new Group for that account, and follow the process above.
More about the Fitness tracker page.