[IA64] Minor cleanups - remove CONFIG_ACPI_DEALLOCATE_IRQ

The config option 'CONFIG_ACPI_DEALLOCATE_IRQ' is no longer
needed. This patch removes it.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/acpi.c

@@ -575,14 +575,12 @@ acpi_register_gsi (u32 gsi, int edge_level, int active_high_low)
 }
 EXPORT_SYMBOL(acpi_register_gsi);
 
-#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
 void
 acpi_unregister_gsi (u32 gsi)
 {
 	iosapic_unregister_intr(gsi);
 }
 EXPORT_SYMBOL(acpi_unregister_gsi);
-#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */
 
 static int __init
 acpi_parse_fadt (unsigned long phys_addr, unsigned long size)

arch/ia64/kernel/iosapic.c

@@ -776,7 +776,6 @@ again:
 	return vector;
 }
 
-#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
 void
 iosapic_unregister_intr (unsigned int gsi)
 {
@@ -859,7 +858,6 @@ iosapic_unregister_intr (unsigned int gsi)
 	spin_unlock(&iosapic_lock);
 	spin_unlock_irqrestore(&idesc->lock, flags);
 }
-#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */
 
 /*
  * ACPI calls this when it finds an entry for a platform interrupt.