irqchip/clps711x: Remove unused clps711x_intc_init() function

This function has no caller or declaration any more:

drivers/irqchip/irq-clps711x.c:215:13: error: no previous prototype for 'clps711x_intc_init'

The #ifdef check around clps711x_intc_init_dt() is also not
needed since the file is only built when that is enabled.

Fixes: 4a56f46a7dc6 ("ARM: clps711x: Remove boards support")
Signed-off-by: Arnd Bergmann <[e-mail]>
Signed-off-by: Marc Zyngier <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/irqchip/irq-clps711x.c

···
 	return err;
 }
 
-void __init clps711x_intc_init(phys_addr_t base, resource_size_t size)
-{
-	BUG_ON(_clps711x_intc_init(NULL, base, size));
-}
-
-#ifdef CONFIG_IRQCHIP
 static int __init clps711x_intc_init_dt(struct device_node *np,
 					struct device_node *parent)
 {
···
 	return _clps711x_intc_init(np, res.start, resource_size(&res));
 }
 IRQCHIP_DECLARE(clps711x, "cirrus,ep7209-intc", clps711x_intc_init_dt);
-#endif