usb: dwc3-generic: remove dm_scan_fdt_dev() from the remove() callback

There is simply no reason to do that here.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 3e6c494..70431fa 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -337,7 +337,7 @@
 
 	clk_release_bulk(&glue->clks);
 
-	return dm_scan_fdt_dev(dev);
+	return 0;
 }
 
 static const struct udevice_id dwc3_glue_ids[] = {