Unnecessary suppresswarnings

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1470342 13f79535-47bb-0310-9956-ffa450edef68
Javadoc typo

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1470343 13f79535-47bb-0310-9956-ffa450edef68