Update annotate.admin.inc

reate a form submission routine that will be called when the site administrator submits the form. In this routine, the module will check to see whether the check box for a content type is checked or unchecked. If it is unchecked, I’ll verify that the content type does not have the annotation field associated with it. If it does, that indicates that the site administrator wants the field removed from that content type, and removes the existing annotations that are stored in the database. If the check box is checked, the module checks to see whether the field exists on that content type, and if not, the module adds the annotation field to that content type.