[1/10] WineD3D: Call glFlush outside the GL lock

[Stefan Dösinger]

> 2008/8/4 Stefan Dösinger <stefan at codeweavers.com>:
> > +    /* No checkGLcall here to avoid locking the lock just for
> checking a call that hardly ever
> > +     * fails
> > +     */
> I think explaining why there's no ENTER_GL()/LEAVE_GL() is more
> important there.
Good point