Here are the steps to remove the cPanel Varnish Plugin from your server. It's recommended that you download the package that's from the same main release (ex 6.x).
- Download the package from your Client Area and upload to the server where you have the cPanel Varnish Plugin installed
- Unpack the file (replace the file name with your installed version): tar -xzf varnish.unixy.net-6.2.0rc1-el7.tar.zip
- cd varnish.unixy.net-6.2.0rc1-el7
- python uninstall