You may want to delete a view because it no longer serves a purpose or because you want to keep the number of views manageable. You need Edit permission level or higher to delete a view.
Updated October 5, 2018
Delete a list view
Note: Does your screen look different than the examples here? Your administrator may have classic experience set on the list, or you're using an earlier version. If so, see Create, change, or delete a view of a list or library. If you're a list owner, site owner, or administrator, see Switch the default experience for lists or document libraries from new or classic for the steps to set the default experience.
In the app launcher , click SharePoint, locate and go to the site, and then open the list. If you can’t find the list, click Settings , click Site Contents, and then open the list.
In the Command bar, click View options . If the current view isn't the one you want to delete, click the one to delete. Then click View options again.
If View options isn't visible, make sure you are not editing the list or have any items selected. Also, you may not have permission. In that case, contact the SharePoint admin or the site or list owners.
Click Select Edit current view.
At the top or bottom of the Edit View page, click Delete.
Note: If Delete is not an option, this may be the default view for the list, and you cannot delete a default view. You need to first create or change modify another view and make it the default.
When prompted to confirm, click OK.