Here is how you can PERMANENTLY delete a report (please note there is no way to restore a deleted report):

*Only Site Admins can delete reports.

1. Open the report you wish to delete by selecting it from the Reports list.
   
2. Click the Edit button (pencil icon) in the top right corner of the report details screen.
   
3. Click 'DELETE REPORT' in the top right corner of the Edit Report screen. 
   
4. Confirm delete by clicking either Yes or No.