If you want to remove HACS you need to do that using the folowing steps.

  1. Remove the configuration from configuration.yaml(if configured with legacy(YAMl)) or remove it using the trashbin icon on the integration page.
  2. Restart Home Assistant important
  3. Restart Home Assistant (yes, this needs to be done twice) important
  4. Delete the hacs directory under custom_components.
  5. Delete all files containing hacs under the .storage directory.
  6. Restart Home Assistant.
Last updated on 12/25/2019