Removed Encode Explorer entry as UNMAINTAINED (#2560)

Signed-off-by: Akashdeep Dhar <akashdeep.dhar@gmail.com>

README.md

@@ -815,7 +815,6 @@ _See https://github.com/n1trux/awesome-sysadmin#distributed-filesystems_
 
 - [Apaxy](https://oupala.github.io/apaxy/) - Theme built to enhance the experience of browsing web directories, using the mod_autoindex Apache module and some CSS to override the default style of a directory listing. ([Source Code](https://github.com/AdamWhitcroft/Apaxy)) `Unlicense` `HTML`
 - [DirectoryLister](http://www.directorylister.com/) - Simple PHP based directory lister that lists a directory and all its sub-directories and allows you to navigate there within. ([Source Code](https://github.com/DirectoryLister/DirectoryLister)) `MIT` `PHP`
-- [Encode Explorer](http://encode-explorer.siineiolekala.net/) - Encode Explorer is a single page file browser, it is simple and functional. ([Demo](http://encode-explorer.siineiolekala.net/explorer/index.php), [Source Code](https://github.com/marekrei/encode-explorer)) `MIT` `PHP`
 - [explorer](https://soyuka.github.io/explorer/) - Highly-configurable directory listing made with nodejs. ([Source Code](https://github.com/soyuka/explorer)) `MIT` `Nodejs`
 - [filebrowser](https://filebrowser.org/) - Web File Browser with a Material Design web interface. ([Source Code](https://github.com/filebrowser/filebrowser)) `Apache-2.0` `Go`
 - [FileGator](https://filegator.io/) - FileGator is a powerful multi-user file manager with a single page front-end. ([Demo](https://demo.filegator.io), [Source Code](https://github.com/filegator/filegator)) `MIT` `PHP`