omapfb: Remove reference to pdata->default_device

The default_device is no longer used, it is a leftower from legacy. The
else if (pdata->default_device) is always going to be false.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>

drivers/video/fbdev/omap2/omapfb/dss/core.c

@@ -208,8 +208,6 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 		core.default_display_name = def_disp_name;
 	else if (pdata->default_display_name)
 		core.default_display_name = pdata->default_display_name;
-	else if (pdata->default_device)
-		core.default_display_name = pdata->default_device->name;
 
 	register_pm_notifier(&omap_dss_pm_notif_block);