I've got you covered, @Willowbrook.
Commented reports are useful and help when trying to maintain and work with others on reports. To delete a commented report:
- From the top menu, go to Reports, then Commented Reports.
- Pick the Commented Report you'd like to delete by selecting it from the list.
- Hit Commented Report in the lower-left corner of the list, then choose Delete Commented Report.
- Click Yes to permanently delete the commented report.

That's it! If you'd like to learn about customizing reports in QuickBooks Desktop, I recommend checking out this awesome article.
I'm only a reply away if you have any other questions. Hope you have a wonderful weekend!