Removed unused imports.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@329 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/ComponentManager.java

 package org.jivesoftware.messenger;
 
-import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;