🔥 Removes BountySource links

Author: frenck

README.md

@@ -9,7 +9,6 @@
 ![Project Maintenance][maintenance-shield]
 [![GitHub Activity][commits-shield]][commits]
 
-[![Bountysource][bountysource-shield]][bountysource]
 [![Discord][discord-shield]][discord]
 [![Community Forum][forum-shield]][forum]
 
@@ -387,8 +386,6 @@ SOFTWARE.
 [armhf-microbadger]: https://microbadger.com/images/hassioaddons/node-red-armhf
 [armhf-pulls-shield]: https://img.shields.io/docker/pulls/hassioaddons/node-red-armhf.svg
 [armhf-version-shield]: https://images.microbadger.com/badges/version/hassioaddons/node-red-armhf.svg
-[bountysource-shield]: https://img.shields.io/bountysource/team/hassio-addons/activity.svg
-[bountysource]: https://www.bountysource.com/teams/hassio-addons/issues
 [buymeacoffee-shield]: https://www.buymeacoffee.com/assets/img/guidelines/download-assets-sm-2.svg
 [buymeacoffee]: https://www.buymeacoffee.com/frenck
 [commits-shield]: https://img.shields.io/github/commit-activity/y/hassio-addons/addon-node-red.svg