RCP: 0.7.6, Charts, remove old charts generating and test code when the 0.7.6 will be validated
Remove old charts generating and test code when the 0.7.6 will be
validated, see the FIXME tags in source code.
Also discuss about removing the @deprecated methods. These methods are
still in used by the portal.
(from redmine: issue id 819, created on 2014/05/19 by Sebastien Jacquot)