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diff --git a/examples/statemachine/tankgame/tankitem.h b/examples/statemachine/tankgame/tankitem.h
deleted file mode 100644
index a2f72de..0000000
--- a/examples/statemachine/tankgame/tankitem.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the either Technology Preview License Agreement or the
-** Beta Release License Agreement.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://www.qtsoftware.com/contact.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef TANKITEM_H
-#define TANKITEM_H
-
-#include "gameitem.h"
-
-#include <QColor>
-
-class Action;
-class TankItem: public GameItem
-{
-    Q_OBJECT
-    Q_PROPERTY(bool enabled READ enabled WRITE setEnabled)
-    Q_PROPERTY(qreal direction READ direction WRITE turnTo)
-    Q_PROPERTY(qreal distanceToObstacle READ distanceToObstacle)
-public:
-    TankItem(QObject *parent = 0);
-
-    void setColor(const QColor &color) { m_color = color; }
-    QColor color() const { return m_color; }
-
-    void idle(qreal elapsed);
-    void setDirection(qreal newDirection);
-
-    qreal speed() const { return 90.0; }
-    qreal angularSpeed() const { return 90.0; }
-
-    QRectF boundingRect() const;
-
-    void hitByRocket();
-
-    void setEnabled(bool b) { m_enabled = b; }
-    bool enabled() const { return m_enabled; }
-
-    qreal direction() const;
-    qreal distanceToObstacle() const;
-    qreal distanceToObstacle(QGraphicsItem **item) const;
-
-//! [0]
-signals:
-    void tankSpotted(qreal direction, qreal distance);
-    void collision(const QLineF &collidedLine);
-    void actionCompleted();
-    void cannonFired();
-    void aboutToBeDestroyed();
-
-public slots:
-    void moveForwards(qreal length = 10.0);
-    void moveBackwards(qreal length = 10.0);
-    void turn(qreal degrees = 30.0);
-    void turnTo(qreal degrees = 0.0);
-    void stop();
-    void fireCannon();
-//! [0]
-
-protected:
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
-    QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value);
-
-private:
-    void setAction(Action *newAction);
-
-    Action *m_currentAction;
-    qreal m_currentDirection;
-    QColor m_color;
-    bool m_enabled;
-};
-
-#endif