Removing a HACS integration

How do I completely get rid of the Amplifi integration (GitHub - puttyman/hass-amplifi: A home assistant integration for Ubiquiti Amplifi) ? I installed it via HACS, then uninstalled when I discovered it needs the router password to be entered. Removal from the HACS integrations page seemed to work, and it no longer appears there. But HA is now constantly re-discovering it and notifying me that “The following integrations and platforms could not be set up: amplifi”. So far as I can tell, there is no reference to ‘amplifi’ in any of my yaml files.