sh: remove obsolete hw_interrupt_type

Impact: cleanup

Convert the last remaining users to struct irq_chip and remove the
define.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/cpu/irq/imask.c b/arch/sh/kernel/cpu/irq/imask.c
index 301b505..f43753b 100644
--- a/arch/sh/kernel/cpu/irq/imask.c
+++ b/arch/sh/kernel/cpu/irq/imask.c
@@ -39,7 +39,7 @@
 	return 0; /* never anything pending */
 }
 
-static struct hw_interrupt_type imask_irq_type = {
+static struct irq_chip imask_irq_type = {
 	.typename = "SR.IMASK",
 	.startup = startup_imask_irq,
 	.shutdown = shutdown_imask_irq,
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index 726f033..d8679a4 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -84,7 +84,7 @@
 static void mask_and_ack_intc(unsigned int);
 static void end_intc_irq(unsigned int irq);
 
-static struct hw_interrupt_type intc_irq_type = {
+static struct irq_chip intc_irq_type = {
 	.typename = "INTC",
 	.startup = startup_intc_irq,
 	.shutdown = shutdown_intc_irq,