Revert "Allow customizing the default fbo from the QPlatformGLContext."

This reverts commit a8530e5db7ae25ea0ab5df4681308374abf8b6ba.

Conflicts:

	src/gui/kernel/qplatformglcontext_qpa.cpp
	src/gui/kernel/qplatformglcontext_qpa.h

2 files changed, 0 insertions, 7 deletions

diff --git a/src/opengl/qgl_qpa.cpp b/src/opengl/qgl_qpa.cpp
index c328819..49c0860 100644
--- a/src/opengl/qgl_qpa.cpp
+++ b/src/opengl/qgl_qpa.cpp
@@ -139,7 +139,6 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
         }
         d->platformContext = widget->platformWindow()->glContext();
         Q_ASSERT(d->platformContext);
-        d->default_fbo = d->platformContext->defaultFBO();
         d->glFormat = qt_platformwindowformat_to_glformat(d->platformContext->platformWindowFormat());
         d->valid =(bool) d->platformContext;
     }
diff --git a/src/opengl/qglpaintdevice.cpp b/src/opengl/qglpaintdevice.cpp
index e12fdae..e1dcbfd 100644
--- a/src/opengl/qglpaintdevice.cpp
+++ b/src/opengl/qglpaintdevice.cpp
@@ -166,12 +166,6 @@ void QGLWidgetGLPaintDevice::setWidget(QGLWidget* w)
 
 void QGLWidgetGLPaintDevice::beginPaint()
 {
-    // ### This should be in setWidget(), but the context of the QGLWidget
-    // hasn't been set there yet.
-#ifdef Q_WS_QPA
-    m_thisFBO = context()->d_ptr->platformContext->defaultFBO();
-#endif
-
     QGLPaintDevice::beginPaint();
     if (!glWidget->d_func()->disable_clear_on_painter_begin && glWidget->autoFillBackground()) {
         if (glWidget->testAttribute(Qt::WA_TranslucentBackground))