Revert "serial: serial_xen: print U-Boot banner and others"

This reverts commit 18426bf02217de2e9bb2b41eaa74d769892c55ef.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/serial/serial_xen.c b/drivers/serial/serial_xen.c
index ed19182..ba6504b 100644
--- a/drivers/serial/serial_xen.c
+++ b/drivers/serial/serial_xen.c
@@ -175,6 +175,8 @@
 	.priv_auto_alloc_size	= sizeof(struct xen_uart_priv),
 	.probe			= xen_serial_probe,
 	.ops			= &xen_serial_ops,
+#if !CONFIG_IS_ENABLED(OF_CONTROL)
 	.flags			= DM_FLAG_PRE_RELOC,
+#endif
 };