[PATCH v2 3/3] ns16550: drop stray "#ifdef CONFIG_HAS_PCI"

[Jan Beulich <jbeulich@xxxxxxxx>]

There's no point wrapping the function invocation when
- the function body is already suitably wrapped,
- the function itself is unconditionally available.

Reported-by: Julien Grall <julien@xxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/drivers/char/ns16550.c
+++ b/xen/drivers/char/ns16550.c
@@ -662,9 +662,7 @@ static int __init check_existence(struct
     return 1; /* Everything is MMIO */
 #endif
 
-#ifdef CONFIG_HAS_PCI
     pci_serial_early_init(uart);
-#endif
 
     /*
      * Do a simple existence test first; if we fail this,