You can uninstall Tedit the same way you would uninstall any other standard macOS app.
Quit the Tedit app
on your Mac.
In the Finder, move Tedit to the Trash.
To uninstall Tedit and remove all related files, delete the following files and folders:
/Applications/Tedit
~/Library/Containers/com.Tedit.Tedit/
~/Library/Application Scripts/com.Tedit.Tedit/
Here, the tilde (~) represents your home folder and the slash (/) means the folder separator.