How can i remove hoa from my laravel project?

I happend to install hoa for running the fourstream websocket package for my laravel project. But after installing i am getting "Hoa main file (Core.php) must be included once" for every composer command i run. How can i undo this and remove hoa completely from my project?

I can't do composer update as it will update my laravel 5.1 version to laravel 5.2.

via Chebli Mohamed