OPENDJ-3089 Fix copyright and checkstyle

Nicolas Capponi

16.17.2016 166e5397fe31b448d69627fa9800e09b6cf63390

 opendj-server-legacy/src/main/java/org/opends/server/tools/upgrade/UpgradeTasks.java

@@ -67,7 +67,6 @@
import org.opends.server.tools.RebuildIndex;
import org.opends.server.util.BuildVersion;
import org.opends.server.util.ChangeOperationType;
import org.opends.server.util.SchemaUtils;
import org.opends.server.util.StaticUtils;

import com.forgerock.opendj.cli.ClientException;