windows: Give up on SwitchableComposition

Opt out of switching between the normal and OpenGL based flush paths.
Once a QOpenGLWidget or QQuickWidget becomes visible in a window, the
window contents will be composed using OpenGL from that point on, even
if said widgets become invisible afterwards. Now that Qt Creator does
not rely on QQuickWidget the issue is less burning anyways.

Task-number: QTBUG-68329
Change-Id: I177e6e6094ee06ea26d8d0343bd3d84aadfa5913
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

0 files changed, 0 insertions, 0 deletions