Update or remove apps schema views that depend on person.image_lo

view apps.crsid_and_photo depends on column image_lo of table person
view apps.crsid_and_role depends on column image_lo of table person
view apps.leavers_crsid_email_role depends on column image_lo of table person

One of these is definitely used by the COs leavers system. dbImage.php on apps too, perhaps.