Doc: Remove references to the deprecated QGraphicsItemAnimation

Task-number: QTBUG-23711
Change-Id: I1c1ce049016d0bea03d43631493ed8d248162eee
Reviewed-by: Qt Doc Bot <qt_docbot@qt-project.org>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Andreas Aardal Hanssen <andreas@hanssen.name>
Reviewed-by: Jason Barron <jason.barron@nokia.com>

src/corelib/tools/qtimeline.cpp

@@ -185,11 +185,6 @@ void QTimeLinePrivate::setCurrentTime(int msecs)
 
     \snippet code/src_corelib_tools_qtimeline.cpp 0
 
-    You can also use QTimeLine with the
-    \l{Graphics View}{Graphics View framework} for
-    animations. The QGraphicsItemAnimation class implements animation
-    of \l{QGraphicsItem}{QGraphicsItems} with a timeline.
-
     By default the timeline runs once, from the beginning and towards the end,
     upon which you must call start() again to restart from the beginning. To
     make the timeline loop, you can call setLoopCount(), passing the number of
@@ -218,7 +213,7 @@ void QTimeLinePrivate::setCurrentTime(int msecs)
     finally grows slowly. For a custom timeline, you can reimplement
     valueForTime(), in which case QTimeLine's curveShape property is ignored.
 
-    \sa QProgressBar, QProgressDialog, QGraphicsItemAnimation
+    \sa QProgressBar, QProgressDialog
 */
 
 /*!

src/widgets/graphicsview/qgraphicsitem.cpp

@@ -4498,12 +4498,11 @@ void QGraphicsItem::resetTransform()
 
     The default implementation does nothing.
 
-    For individual item animation, an alternative to this function is to
-    either use QGraphicsItemAnimation, or to multiple-inherit from QObject and
-    QGraphicsItem, and animate your item using QObject::startTimer() and
-    QObject::timerEvent().
+    This function is intended for animations. An alternative is to
+    multiple-inherit from QObject and QGraphicsItem and use the \l{The Animation
+    Framework}{Animation Framework}.
 
-    \sa QGraphicsItemAnimation, QTimeLine
+    \sa QGraphicsScene::advance(), QTimeLine
 */
 void QGraphicsItem::advance(int phase)
 {

src/widgets/graphicsview/qgraphicsscene.cpp

@@ -3221,7 +3221,10 @@ QList <QGraphicsView *> QGraphicsScene::views() const
     move. In the first phase, QGraphicsItem::advance() is called passing a
     value of 0 as an argument, and 1 is passed in the second phase.
 
-    \sa QGraphicsItem::advance(), QGraphicsItemAnimation, QTimeLine
+    Note that you can also use the \l{The Animation Framework}{Animation
+    Framework} for animations.
+
+    \sa QGraphicsItem::advance(), QTimeLine
 */
 void QGraphicsScene::advance()
 {