Remove Is.gd (#2659)

README.md

@@ -1401,7 +1401,6 @@ API | Description | Auth | HTTPS | CORS |
 | [Clico](https://cli.com/swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config) | URL shortener service | `apiKey` | Yes | Unknown |
 | [Git.io](https://github.blog/2011-11-10-git-io-github-url-shortener/) | Git.io URL shortener | No | Yes | Unknown |
 | [GoTiny](https://github.com/robvanbakel/gotiny-api) | A lightweight URL shortener, focused on ease-of-use for the developer and end-user | No | Yes | Yes |
-| [Is.gd](https://is.gd/developers.php) | URL Shortening API | No | Yes | Unknown |
 | [Kutt](https://docs.kutt.it/) | Free Modern URL Shortener | `apiKey` | Yes | Yes |
 | [Rebrandly](https://developers.rebrandly.com/v1/docs) | Custom URL shortener for sharing branded links | `apiKey` | Yes | Unknown |
 | [Short Link](https://github.com/FayasNoushad/Short-Link-API) | Short URLs support so many domains | No | Yes | Unknown |