vfio-mdev/mdpy-fb: Do not set struct fb_info.apertures

Generic fbdev drivers use the apertures field in struct fb_info to
control ownership of the framebuffer memory and graphics device. Do
not set the values in mdpy-fb.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219160516.23436-10-tzimmermann@suse.de

samples/vfio-mdev/mdpy-fb.c

@@ -161,14 +161,6 @@ static int mdpy_fb_probe(struct pci_dev *pdev,
 		goto err_release_fb;
 	}
 
-	info->apertures = alloc_apertures(1);
-	if (!info->apertures) {
-		ret = -ENOMEM;
-		goto err_unmap;
-	}
-	info->apertures->ranges[0].base = info->fix.smem_start;
-	info->apertures->ranges[0].size = info->fix.smem_len;
-
 	info->fbops = &mdpy_fb_ops;
 	info->flags = FBINFO_DEFAULT;
 	info->pseudo_palette = par->palette;