Fix use of teams API in tests
As noted here: pubsweet-server!100 (comment 7547) The teams api is used with /api/collections/:id/teams unnecessarily and incorrectly. Needs to be fixed.
As noted here: pubsweet-server!100 (comment 7547) The teams api is used with /api/collections/:id/teams unnecessarily and incorrectly. Needs to be fixed.