KNL-1229 Remove deprecated "pattern" cache update event handling
Removed the alias target cache entirely as it was barely used

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@308507 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1240 remove CLE refs from code

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@308508 66ffb92e-73f9-0310-93c1-f5514f145a0a