irqchip: omap-intc: Remove unused legacy interface for omap2

Nowadays omap2 is booting in device tree only mode so there is no
need to keep the legacy interface around for omap2_init_irq().
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1421187806-6804-3-git-send-email-tony@atomide.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/irqchip/irq-omap-intc.c

@@ -364,14 +364,6 @@ omap_intc_handle_irq(struct pt_regs *regs)
 		omap_ack_irq(NULL);
 }
 
-void __init omap2_init_irq(void)
-{
-	omap_nr_irqs = 96;
-	omap_nr_pending = 3;
-	omap_init_irq(OMAP24XX_IC_BASE, NULL);
-	set_handle_irq(omap_intc_handle_irq);
-}
-
 void __init omap3_init_irq(void)
 {
 	omap_nr_irqs = 96;

include/linux/irqchip/irq-omap-intc.h

@@ -18,7 +18,6 @@
 #ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
 #define __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
 
-void omap2_init_irq(void);
 void omap3_init_irq(void);
 
 int omap_irq_pending(void);