Remove obsolete comment

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1592603 13f79535-47bb-0310-9956-ffa450edef68
Document reliance of parse(File, CSVFormat) to default encoding

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1592604 13f79535-47bb-0310-9956-ffa450edef68