Setting the delete option
Enable or disable users to delete a portlet.
The delete option is the check box located in the container. When
the delete box is unchecked for a portlet, the delete icon for the
portlet is unavailable for users who are modifying the page in Edit
Layout and Content. When this box is checked for a portlet, the delete
icon for the portlet is available for users who are modifying the
page in Edit Layout and Content. When a portlet is added to a page,
the default setting is a checked box for the portlet.