remove img.bi (unmaintained since 2016, website down)

README.md

@@ -766,7 +766,6 @@ See https://github.com/n1trux/awesome-sysadmin#distributed-filesystems
 - [FileShelter](https://github.com/epoupon/fileshelter) - FileShelter is a self-hosted software that allows you to easily share files over the Internet. ([Demo](http://fileshelter.demo.poupon.io/)) `GPL-3.0` `C++`
 - [Files Sharing](https://github.com/axeloz/filesharing) - Open Source and self-hosted files sharing application based on unique and temporary links. `GPL-3.0` `PHP`
 - [goploader](https://gpldr.in/) - Easy file sharing with server-side encryption, curl/httpie/wget compliant. ([Source Code](https://github.com/Depado/goploader)) `MIT` `Go`
-- [img.bi](https://github.com/imgbi/img.bi) - img.bi is a secure image hosting. Images are encrypted using AES-256 with random key in browser before upload. `GPL-3.0` `Nodejs`
 - [imgpush](https://github.com/hauxir/imgpush) - imgpush is a self-hosted file upload service that can easily be integrated into other webapps. `MIT` `Python`
 - [ipfs.pics](https://github.com/ipfspics/server) - ipfs.pics is a distributed image hosting website. `AGPL-3.0` `PHP`
 - [Jirafeau](https://gitlab.com/mojo42/Jirafeau) - Jirafeau is a web site permitting to upload a file in a simple way and give an unique link to it. ([Demo](http://jirafeau.net/)) `AGPL-3.0` `PHP`