How to Edit and Delete a View in Salesforce
After you've created a view in Salesforce, you can edit it or delete it.
It’s easy to edit any view that you've created.
Salesforce displays the view.
You can also create new views from existing ones, by saving them under a different name--just like you might use the Save As command in Microsoft Word.
Salesforce saves and displays the view.
If you find that a view is no longer useful, it's easy to delete it.
Salesforce deletes the view.