Remove OMDB API

This API has gone [private](https://www.patreon.com/posts/api-is-going-10743518) and now a small fee is required to use it.

README.md

@@ -520,7 +520,6 @@ Please note a passing build status indicates all listed APIs are available since
 | Dailymotion | Dailymotion Developer API | `OAuth` | Yes | [Go!](https://developer.dailymotion.com/) |
 | MovieDB | Movie Data | `apiKey` | Yes | [Go!](https://www.themoviedb.org/documentation/api) |
 | Netflix Roulette | Netflix database | No | No | [Go!](http://netflixroulette.net/api/) |
-| OMDB | Open movie database | No | Yes | [Go!](https://omdbapi.com/) |
 | Ron Swanson Quotes | Television | No | Yes | [Go!](https://github.com/jamesseanwright/ron-swanson-quotes#ron-swanson-quotes-api) |
 | TVMaze | TV Show Data | No | No | [Go!](http://www.tvmaze.com/api) |
 | Vimeo | Vimeo Developer API | `OAuth` | Yes | [Go!](https://developer.vimeo.com/) |