Delete a journal entry in iTunes U for web
As the course instructor or contributor, if there is a draft entry or inappropriate comments or files in an assignment journal and you no longer want your student or other instructors or contributors in your private course to see the content, you can delete the journal entry. When you delete a journal entry, you permanently remove the entry and there is no way to recover the content.
You can also view the assignment journal in the Posts | Assignments pane. Click Posts > 
Assignments, click the assignment you want, then click a student discussion.
Delete a journal entry
In iTunes U
for web, click the course name in the dashboard for the course you want.Click Admin
, then click Grades.Click the progress cell for the student you want.
iTunes U displays the assignment journal for the student.
Hover the pointer over the journal entry you want to delete, click
, then click Delete.