Important: When you delete a project you lose all content within the project including uploads and edits, you will no longer be able to access it or the deleted content within your studio
There are two locations where you can delete a project:
Once a project has been created, go to the Setup page and scroll to the bottom of the page where you'll find the delete project button
Go to the Edits page of a project, next to the Project name at the top of the page is a ... menu, open this up and choose the delete project option