Remove internal QClipboardEvent

This class is not in use with QPA.

Also remove useless sending of QEvent::Clipboard from the
QGuiApplication dtor. That event is not (cannot be) handled by the
platform plugins and is not used at all. Perhaps it should be removed
altogether from the public API.

Change-Id: I478b31ff9875a8dfff99bddafd335ab02a5fe477
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

src/gui/kernel/qevent.cpp

@@ -3214,31 +3214,6 @@ QDebug operator<<(QDebug dbg, const QEvent *e) {
 }
 #endif
 
-#ifndef QT_NO_CLIPBOARD
-/*!
-    \class QClipboardEvent
-    \ingroup events
-    \internal
-
-    \brief The QClipboardEvent class provides the parameters used in a clipboard event.
-
-    This class is for internal use only, and exists to aid the clipboard on various
-    platforms to get all the information it needs. Use QEvent::Clipboard instead.
-
-    \sa QClipboard
-*/
-
-QClipboardEvent::QClipboardEvent(QEventPrivate *data)
-    : QEvent(QEvent::Clipboard)
-{
-    d = data;
-}
-
-QClipboardEvent::~QClipboardEvent()
-{
-}
-#endif // QT_NO_CLIPBOARD
-
 /*!
     \class QShortcutEvent
     \brief The QShortcutEvent class provides an event which is generated when

src/gui/kernel/qevent.h

@@ -682,17 +682,6 @@ protected:
 };
 #endif
 
-#ifndef QT_NO_CLIPBOARD
-class Q_GUI_EXPORT QClipboardEvent : public QEvent
-{
-public:
-    explicit QClipboardEvent(QEventPrivate *data);
-    ~QClipboardEvent();
-
-    QEventPrivate *data() { return d; }
-};
-#endif
-
 class Q_GUI_EXPORT QWindowStateChangeEvent: public QEvent
 {
 public:

src/gui/kernel/qguiapplication.cpp

@@ -348,13 +348,6 @@ QGuiApplication::QGuiApplication(QGuiApplicationPrivate &p)
 QGuiApplication::~QGuiApplication()
 {
     Q_D(QGuiApplication);
-    // flush clipboard contents
-#ifndef QT_NO_CLIPBOARD
-    if (QGuiApplicationPrivate::qt_clipboard) {
-        QEvent event(QEvent::Clipboard);
-        QGuiApplication::sendEvent(QGuiApplicationPrivate::qt_clipboard, &event);
-    }
-#endif
 
     d->eventDispatcher->closingDown();
     d->eventDispatcher = 0;