How do I delete an announcement?
Go to the Announcements tool.
Select the Announcements tool from the Tool Menu of your site.
Select the announcement(s) to remove.
In the Remove? column, select the check box(es) for the announcement(s) you would like to delete.
Select Update.
At the bottom of the page, select Update.
Confirm deletion.
You will be taken to a confirmation screen listing the announcement(s) to be deleted. If you are sure you want to delete the announcement(s), select Remove.