DERBY-6463  localcal demo seems to be obsolete and should be removed

Merged DERBY-6463-2.diff to 10.10 code branch from trunk revisions 1564508 and 1564513.


git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/branches/10.10@1564519 13f79535-47bb-0310-9956-ffa450edef68