clocksource: Drop unused irqaction.mask from SH drivers.

The irqaction.mask is legacy code that is wholly unused and going away,
so simply drop its use in the SH drivers completely.

Fixes up build failures in -next.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index cf56a2a..7135f50 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -599,7 +599,6 @@
 	p->irqaction.handler = sh_cmt_interrupt;
 	p->irqaction.dev_id = p;
 	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
-	p->irqaction.mask = CPU_MASK_NONE;
 	ret = setup_irq(irq, &p->irqaction);
 	if (ret) {
 		pr_err("sh_cmt: failed to request irq %d\n", irq);
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index d1ae754..973e714 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -283,7 +283,6 @@
 	p->irqaction.dev_id = p;
 	p->irqaction.irq = irq;
 	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
-	p->irqaction.mask = CPU_MASK_NONE;
 
 	/* get hold of clock */
 	p->clk = clk_get(&p->pdev->dev, cfg->clk);
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index d6ea439..08e6ec2 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -385,7 +385,6 @@
 	p->irqaction.dev_id = p;
 	p->irqaction.irq = irq;
 	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
-	p->irqaction.mask = CPU_MASK_NONE;
 
 	/* get hold of clock */
 	p->clk = clk_get(&p->pdev->dev, cfg->clk);