You can delete a list view when you no longer need it.
|Available in: Group, Professional, Enterprise, Performance, Unlimited, and Developer Editions|
|To delete public list views||“Manage Public List Views”|
These steps work in Lightning Experience
. If you see a navigation bar on the left side of your screen, you're in Lightning Experience. If you see a row of tabs across the top of the screen, you’re in Salesforce Classic.
Select a list view.
Click to access List View Controls.