How can you delete a server in Discord App?

You can delete a Discord server by accessing the "Server Settings" page. You can also transfer ownership to another server member if you don't want the server anymore, you don't need to delete it. Once you delete a server on Discord, it's gone and cannot be recovered. 

Click on Login and sign into your account. Right-click on the server from your Discord server list. Click Server Settings. Scroll to the bottom of the page, and click Delete Server.