USB: gpio_vbus: remove IRQF_SAMPLE_RANDOM use

IRQF_SAMPLE_RANDOM has been scheduled for removal for years (it was
scheduled by July 2009, but not yet remvoed).

I'm not sure when it's going to take place, but would be better to
remove it now.  Thanks for scripts/checkpatch secretary.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c
index 8853cb1..4e393ef 100644
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -53,8 +53,7 @@
  * edges might be workable.
  */
 #define VBUS_IRQ_FLAGS \
-	( IRQF_SAMPLE_RANDOM | IRQF_SHARED \
-	| IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING )
+	(IRQF_SHARED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)
 
 
 /* interface to regulator framework */
@@ -280,7 +279,7 @@
 	if (res) {
 		irq = res->start;
 		res->flags &= IRQF_TRIGGER_MASK;
-		res->flags |= IRQF_SAMPLE_RANDOM | IRQF_SHARED;
+		res->flags |= IRQF_SHARED;
 	} else
 		irq = gpio_to_irq(gpio);