remove Babelfish (unmaintained) (#3518)

- unmaintained since 2021
- no activity in issue tracker
- website down
- CI down (was never migrated after travis CI was shut down)
- ref. https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2266

README.md

@@ -1812,7 +1812,6 @@ Software for easy installation, management and configuration of self-hosted serv
 An [integrated development environment (IDE)](https://en.wikipedia.org/wiki/Integrated_development_environment) is a software application that provides comprehensive facilities to computer programmers for software development.
 
 - [Atheos](https://www.atheos.io) - Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. ([Source Code](https://github.com/Atheos/Atheos)) `MIT` `PHP`
-- [Babelfish](https://github.com/bblfsh/bblfshd) - Self-hosted server for source code parsing. It can parse any file, in any supported language, extract an Abstract Syntax Tree from it, and convert it to a Universal Abstract Syntax Tree which can enable further analysis and transformation. `GPL-3.0` `Go`
 - [code-server](https://github.com/coder/code-server) - VS Code in the browser, hosted on a remote server. `MIT` `Nodejs/Docker`
 - [Coder](https://coder.com/) - Remote development machines on your own infrastructure. ([Source Code](https://github.com/coder/coder)) `AGPL-3.0` `Go`
 - [Eclipse Che](https://www.eclipse.org/che/) - Open source workspace server and cloud IDE. ([Source Code](https://github.com/eclipse/che)) `EPL-1.0` `Docker/Java`