Merge pull request #1488 in BA/design from ~KERRY/design:release/9.0 to release/9.0

* commit '842ece0e82725ecbf2fc78041ee25d38302d3edc':
  无jira任务，删除无用import

designer_base/src/com/fr/design/widget/component/BackgroundCompPane.java

@@ -10,7 +10,6 @@ import com.fr.design.layout.TableLayoutHelper;
 import com.fr.design.mainframe.widget.accessibles.AccessibleImgBackgroundEditor;
 import com.fr.form.ui.Widget;
 import com.fr.general.Inter;
-import com.vividsolutions.jts.index.bintree.Interval;
 
 import javax.swing.*;
 import java.awt.*;

designer_base/src/com/fr/design/widget/component/NumberEditorValidatePane.java

@@ -3,7 +3,6 @@ package com.fr.design.widget.component;
 import com.fr.design.designer.IntervalConstants;
 import com.fr.design.gui.icheckbox.UICheckBox;
 import com.fr.design.gui.ilable.UILabel;
-import com.fr.design.gui.ispinner.UIBasicSpinner;
 import com.fr.design.gui.ispinner.UISpinner;
 import com.fr.design.gui.itextfield.UITextField;
 import com.fr.design.layout.FRGUIPaneFactory;
@@ -13,11 +12,13 @@ import com.fr.form.ui.NumberEditor;
 import com.fr.general.Inter;
 import com.fr.stable.StringUtils;
 
-import javax.swing.*;
+import javax.swing.BorderFactory;
+import javax.swing.JPanel;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
-import javax.swing.text.DefaultFormatter;
+import java.awt.BorderLayout;
-import java.awt.*;
+import java.awt.Component;
+import java.awt.Dimension;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;