The easiest way to completely uninstall CleanMyMac 2 is by using CleanMyMac 2 on itself.
To remove CleanMyMac 2 from your Mac:
Another way to remove CleanMyMac 2 is by simply dragging it to the Trash. However, by doing this, as with removing any other app, it will leave application leftovers on your Mac. It is recommended to use the Uninstaller module of CleanMyMac 2 for complete removal.
Read more: How to Uninstall Apps on a Mac?