diff --git a/src/org/ntlab/traceDebugger/RadioButtonDialog.java b/src/org/ntlab/traceDebugger/RadioButtonDialog.java
deleted file mode 100644
index ca8059e..0000000
--- a/src/org/ntlab/traceDebugger/RadioButtonDialog.java
+++ /dev/null
@@ -1,55 +0,0 @@
-package org.ntlab.traceDebugger;
-
-import org.eclipse.jface.dialogs.Dialog;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.events.SelectionEvent;
-import org.eclipse.swt.events.SelectionListener;
-import org.eclipse.swt.widgets.Button;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Shell;
-
-public class RadioButtonDialog extends Dialog {
-	private int selectedIndex = 0;
-	private String title;
-	private String[] texts;
-	
-	protected RadioButtonDialog(Shell parentShell, String title, String[] texts) {
-		super(parentShell);
-		this.title = title;
-		this.texts = texts;
-	}
-	
-	@Override
-	public void create() {
-		super.create();
-		getShell().setText(title);
-	}
-	
-	@Override
-	protected Control createDialogArea(Composite parent) {
-		Composite composite = (Composite)super.createDialogArea(parent);
-		Button[] buttons = new Button[texts.length];
-		for (int i = 0; i < texts.length; i++) {
-			final int index = i;
-			buttons[i] = new Button(parent, SWT.RADIO);
-//			buttons[i].setLayoutData(new GridData(GridData.FILL_BOTH));
-			buttons[i].setAlignment(SWT.CENTER);
-			buttons[i].setText(texts[i]);
-			buttons[i].addSelectionListener(new SelectionListener() {
-				@Override
-				public void widgetSelected(SelectionEvent e) {
-					selectedIndex = index;
-				}
-				@Override
-				public void widgetDefaultSelected(SelectionEvent e) {
-				}
-			});
-		}
-		return composite;
-	}
-	
-	public String getValue() {
-		return texts[selectedIndex];
-	}
-}