KNL-1162 removing methods from the Cache API/IMPL which are JSR-107 incompatible - getSize()
Also related to KNL-1225

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@307964 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1162 removing methods from the Cache API/IMPL which are JSR-107 incompatible - *Complete*

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@307967 66ffb92e-73f9-0310-93c1-f5514f145a0a