Fix OPENDJ-525: Remove compiler warnings when building using JDK7

Matthew Swift

19.26.2012 108e2020c1d149962dfc43dcbc6bc24a05a8e5f7

 opends/tests/unit-tests-testng/src/server/org/opends/server/api/AlertHandlerTestCase.java

@@ -38,7 +38,6 @@
import org.opends.server.api.AlertGenerator;
import org.opends.server.core.DirectoryServer;
import org.opends.server.extensions.DummyAlertHandler;
import org.opends.server.tools.dsconfig.DSConfig;
import org.opends.server.types.DN;

import static org.testng.Assert.*;