diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
index 165979f18..52007da3e 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
@@ -3,9 +3,7 @@ package org.zkoss.ganttz;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Calendar;
 import java.util.Collection;
-import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -306,10 +304,6 @@ public class LeftTasksTree extends HtmlMacroComponent {
         }
     }
 
-    Planner getPlanner() {
-        return (Planner) getParent();
-    }
-
     public void taskRemoved(Task taskRemoved) {
         tasksTreeModel.remove(taskRemoved);
     }