KNL-1127 - Remove line about legacy cleaner since it's no longer an option 



git-svn-id: https://source.sakaiproject.org/svn/config/trunk@310753 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-26641 - Document some elasticsearch info in default properties


git-svn-id: https://source.sakaiproject.org/svn/config/trunk@310754 66ffb92e-73f9-0310-93c1-f5514f145a0a