ARM: mvebu: Remove init_irq declaration in machine description

Commit ebafed7a ("ARM: irq: Call irqchip_init if no init_irq function is
specified") removed the need to explictly setup the init_irq field in
the machine description when using only irqchip_init. Remove that
declaration for mvebu as well.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/mach-mvebu/armada-370-xp.c

@@ -20,7 +20,6 @@
 #include <linux/clk/mvebu.h>
 #include <linux/dma-mapping.h>
 #include <linux/mbus.h>
-#include <linux/irqchip.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -89,7 +88,6 @@ DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
 	.init_machine	= armada_370_xp_dt_init,
 	.map_io		= armada_370_xp_map_io,
 	.init_early	= armada_370_xp_init_early,
-	.init_irq	= irqchip_init,
 	.init_time	= armada_370_xp_timer_and_clk_init,
 	.restart	= mvebu_restart,
 	.dt_compat	= armada_370_xp_dt_compat,