Move finger paint example to manual test

Change-Id: I26eec035eaa78eac2aa96de72ae38093bc08fd23
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 0b6f5ae131af140088fbc5e770779f9cf8fdbd7f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

examples/widgets/touch/CMakeLists.txt

@@ -5,6 +5,5 @@ if(NOT TARGET Qt6::Widgets)
     return()
 endif()
 qt_internal_add_example(pinchzoom)
-qt_internal_add_example(fingerpaint)
 qt_internal_add_example(knobs)
 qt_internal_add_example(dials)

examples/widgets/touch/touch.pro

@@ -1,4 +1,4 @@
 requires(qtHaveModule(widgets))
 
 TEMPLATE = subdirs
-SUBDIRS = pinchzoom fingerpaint knobs dials
+SUBDIRS = pinchzoom knobs dials