KFSCNTRB-1793: last batch of code review items: remove unneeded code or comments.

git-svn-id: https://svn.kuali.org/repos/kfs/branches/release-5-3@44577 05dbba50-812c-11dd-b2f5-a7aa3c7f87f7
KFSCNTRB-1793: code review item: remove unused imports

git-svn-id: https://svn.kuali.org/repos/kfs/branches/release-5-3@44578 05dbba50-812c-11dd-b2f5-a7aa3c7f87f7