More code cleanup from Eibe

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10217 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Removed non-copyright references re-introduced via last checkin of code cleanup changes

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10218 e0a1b77d-ad91-4216-81b1-defd5f83fa92