The test function renders a pixmap into a widget that is never shown.
It checks for a crash, without failing or passing.
tst_QWidget::render_graphicsEffect() tests the same code path.
Remove the unneeded test function.
Change-Id: I1b64e0466c5a133deec28d0f74ef5acd9858e1ea
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
(cherry picked from commit dfdcb90ffdec0c3a4f7c1c5c59dfba5c04b8c521)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
0a8a34fbe1