Site managers can permanently remove content from a site by deleting pages.
Site managers and Content editors can also archive content that they no longer want site visitors to see. See How to archive content for more information.
Delete a Page
From the administration bar, select Workbench, then select My Dashboard.
Navigate to the Content List.
Select the content you would like to delete.
Select the Delete tab.
Select Delete to confirm.
Note: Deleting content from this tab will delete all revisions of that content. Deleting content cannot be undone.