I’m not a huge fan of UltraEdit, but we have to work with what we are given. And what I have been given is a test editor that keeps on creating backup files every time I hit the save button. This may be useful to some people but, for me, it is just annoying.
However, it’s also pretty easy to switch off. Go to
Advanced > Configuration > File Handling > Backup and select No Backup.
And now your folder is decrapified.