To archive a flow, navigate to the flows page and click the Archive menu item under the contextual menu for the flow you would like to archive.
Archiving a flow effectively deletes the flow. This action cannot be undone so make sure you are comfortable with losing the ability to access this flow and the user state relating to this flow before proceeding. Learn more →
Alternatively, click the Archive menu item in the contexutal menu at the top right of the flow page.