Removed unused code

src/main/java/it/inaf/oats/vospace/persistence/NodeDAO.java

@@ -140,25 +140,6 @@ public class NodeDAO {
         return Optional.of(node);
     }
 
-    public List<String> listNodeChildren(String path) {
-
-        String sql = "SELECT n.name\n"
-                + "FROM node n\n"
-                + "WHERE n.path ~ ('*.' || id_from_vos_path(?) || '.*{1}')::lquery\n"
-                + "ORDER BY n.path";
-
-        List<String> childrenNames = jdbcTemplate.query(conn -> {
-            PreparedStatement ps = conn.prepareStatement(sql);
-            int i = 0;
-            ps.setString(++i, path);
-            return ps;
-        }, (row, index) -> {
-            return row.getString("name");
-        });
-
-        return childrenNames;
-    }
-
     public Node setNode(Node newNode) {
         return setNode(newNode, false);
     }

src/test/java/it/inaf/oats/vospace/persistence/NodeDAOTest.java

@@ -100,16 +100,6 @@ public class NodeDAOTest {
         assertEquals(bTime, NodeProperties.getNodePropertyByURI(root.getNodes().get(0), NodeProperties.DATE_URI));
     }
 
-    @Test
-    public void testListNodeChildren() {
-        assertTrue(dao.listNodeChildren("/test4").isEmpty());
-        List<String> children = dao.listNodeChildren("/test2");
-        assertFalse(children.isEmpty());
-        assertTrue(children.size() == 2);
-        assertTrue(children.containsAll(List.of("f4", "f5")));
-
-    }
-
     @Test
     public void testGetQuotaAndMD5() {