removed Elephant API

The Application is unavailable. Shows Application Error when accessed.

README.md

@@ -117,7 +117,6 @@ API | Description | Auth | HTTPS | CORS |
 | [Dog Facts](https://kinduff.github.io/dog-api/) | Random facts of Dogs | No | Yes | Yes |
 | [Dogs](https://dog.ceo/dog-api/) | Based on the Stanford Dogs Dataset | No | Yes | Yes |
 | [eBird](https://documenter.getpostman.com/view/664302/S1ENwy59) | Retrieve recent or notable birding observations within a region | `apiKey` | Yes | Unknown |
-| [Elephants](https://elephant-api.herokuapp.com/) | A free API to feature awesome elephants in your next project | No | Yes | Yes |
 | [FishWatch](https://www.fishwatch.gov/developers) | Information and pictures about individual fish species | No | Yes | Unknown |
 | [HTTPCat](https://http.cat/) | Cat for every HTTP Status | No | Yes | Yes |
 | [IUCN](http://apiv3.iucnredlist.org/api/v3/docs) | IUCN Red List of Threatened Species | `apiKey` | No | No |