vinco: Remove legacy non-DM_ETH code

Now that we are about to enable DM_ETH by default, remove legacy code.

Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/l+g/vinco/vinco.c b/board/l+g/vinco/vinco.c
index 9c4c5fd..db1075a 100644
--- a/board/l+g/vinco/vinco.c
+++ b/board/l+g/vinco/vinco.c
@@ -204,9 +204,6 @@
 
 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
 	usba_udc_probe(&pdata);
-#ifdef CONFIG_USB_ETH_RNDIS
-	usb_eth_initialize(bis);
-#endif
 #endif
 
 	return rc;