ARM: sirf: 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 sirf as well.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Barry Song <Baohua.Song@csr.com>

arch/arm/mach-prima2/common.c

@@ -9,7 +9,6 @@
 #include <linux/clocksource.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/irqchip.h>
 #include <asm/sizes.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -55,7 +54,6 @@ DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
-	.init_irq	= irqchip_init,
 	.init_time	= sirfsoc_init_time,
 	.init_machine	= sirfsoc_mach_init,
 	.init_late	= sirfsoc_init_late,
@@ -74,7 +72,6 @@ DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.nr_irqs	= 128,
 	.map_io         = sirfsoc_map_io,
-	.init_irq	= irqchip_init,
 	.init_time	= sirfsoc_init_time,
 	.dma_zone_size	= SZ_256M,
 	.init_machine	= sirfsoc_mach_init,
@@ -94,7 +91,6 @@ DT_MACHINE_START(MARCO_DT, "Generic MARCO (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.smp            = smp_ops(sirfsoc_smp_ops),
 	.map_io         = sirfsoc_map_io,
-	.init_irq	= irqchip_init,
 	.init_time	= sirfsoc_init_time,
 	.init_machine	= sirfsoc_mach_init,
 	.init_late	= sirfsoc_init_late,