Try this:
Select none as default editor for your current user
Then try to edit an article
Observe the source of the generated HTML page and you will find some inline scripts in the head and above textarea input
Testing
Apply this PR with patch tester and follow the above steps
A none.min.js is added in the header of the page
Make sure that the buttons bellow the editor still function as usual as well as the saving of the article
I have applied this patch and found "none.min.js" in article edit page source.
After reverted this patch "none.min.js" is not there in article edit page source. Successfully tested this patch.
Tested. Works fine :)