avr32: Delete mostly unused header asm/intc.h

Move the only thing that was actually implemented and used in
asm/intc.h, intc_get_pending(), into asm/irq.h and delete asm/intc.h

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

arch/avr32/oprofile/op_model_avr32.c

@@ -16,7 +16,6 @@
 #include <linux/sched.h>
 #include <linux/types.h>
 
-#include <asm/intc.h>
 #include <asm/sysreg.h>
 #include <asm/system.h>