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/protocols/ldap/LdapTestCase.java

@@ -40,7 +40,6 @@

import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.ListIterator;