Remove Firefox update_url for hosted add-on
Created by: marekweb
For self-hosted addons, the update_url
field in the manifest is used by Firefox to fetch updates to an add-on.
For Mozilla-hosted addons (in the add-on store), this field isn't used, and if the field is present, then validation fails and the add-on can't be published.
Since we've started to migrate the Sourcegraph add-on from self-hosted to Mozilla-hosted, we need to remove the update_url
field in order to pass validation.