Revert "Add Freesound API"

This reverts commit 58fa91d823.

README.md

@@ -207,7 +207,6 @@ A collective list of JSON APIs for use in web development.
 |---|---|---|---|
 | Discogs | Music | No | [Go!](https://www.discogs.com/developers/) |
 | EchoNest | Music | No | [Go!](http://developer.echonest.com/docs/v4) |
-| Freesound | Field recordings and samples uploaded by the community, including analytical descriptors | Yes | [Go!](https://www.freesound.org/docs/api/) |
 | Jamendo | Music | Yes | [Go!](https://developer.jamendo.com/v3.0) |
 | LastFm | Music | No | [Go!](http://www.last.fm/api) |
 | Mixcloud | Music | No | [Go!](https://www.mixcloud.com/developers/) |