How to Uninstall Laravel?
if you have installed it globally you can simply remove it by composer global remove laravel/installer
If you have installed it via composer project you simply remove the directory.
Since I was looking all around how to uninstall packages and after reading tones of documentations here's the short how-to uninstall a workbench package in Laravel
Remove package service provider from 'providers' array in app/config/app.php
Remove the package folder in workbench/
Run:
php composer.phar dump-autoload
php artisan clear-compiled
php artisan optimize
(optional) remove all related code using the package (you'll get errors about that)
or use composer global remove laravel/installer