So you've previously added your Payout Info to your profile, and would now like to disconnect it. Easy!
First, go to the Profile Menu, located in the top right corner of your browser:
Next, click on Account Settings inside the menu:
Then, click on the Payout Info Tab:
Click the black button to take you to your Stripe Connect Dashboard:
This will take you to your Stripe Connect Dashboard in Stripe.
Click on your Profile Icon (see the arrow below) and then you can remove your bank account from the dashboard on their system (see the rectangle below).