Move graphis view flow layout example to manual test

Change-Id: I713816114b87def9eab79b893d13554f1c37c6a5
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 95595d68be)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

examples/widgets/doc/src/graphicsview-flowlayout.qdoc

@@ -1,28 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
-
-/*!
-    \example graphicsview/flowlayout
-    \title Graphics View Flow Layout Example
-    \ingroup examples-graphicsview-layout
-    \brief Demonstrates flow layout on a graphics view scene.
-
-    The Graphics View Flow Layout example shows the use of a flow layout
-    in a Graphics View widget.
-
-    \image graphicsflowlayout-example.png
-
-    This example uses a Graphics View to display the widget, which is a more
-    customizable approach than displaying the flow layout in the application
-    window (See \l {Flow Layout Example}).
-
-    Graphics View Flow Layout snippet:
-
-    \snippet graphicsview/flowlayout/main.cpp 1
-
-    Flow Layout Example snippet:
-
-    \snippet layouts/flowlayout/main.cpp 1
-
-
-*/

examples/widgets/graphicsview/CMakeLists.txt

@@ -6,7 +6,6 @@ qt_internal_add_example(elasticnodes)
 qt_internal_add_example(collidingmice)
 qt_internal_add_example(basicgraphicslayouts)
 qt_internal_add_example(diagramscene)
-qt_internal_add_example(flowlayout)
 qt_internal_add_example(simpleanchorlayout)
 if(QT_FEATURE_cursor AND QT_FEATURE_draganddrop)
     qt_internal_add_example(dragdroprobot)

examples/widgets/graphicsview/graphicsview.pro

@@ -6,7 +6,6 @@ SUBDIRS       = \
               basicgraphicslayouts \
               diagramscene \
               dragdroprobot \
-              flowlayout \
               simpleanchorlayout
 
 contains(DEFINES, QT_NO_CURSOR)|!qtConfig(draganddrop): SUBDIRS -= dragdroprobot