[KIL] Remove tiki-js-sorttable.js which was apparently intended as a fallback for creating sortable tables using javascript if jQuery or the jQuery tablesorter plugin were not enabled. Doesn't appear to have been implemented. (thanks Jonny)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@51016 b456876b-0849-0410-b77d-98878d47e9d5