genirq: Remove irq argument from irq flow handlers

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index bf548c2..ef04b96 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1679,7 +1679,7 @@
  * Use this if you have a separate interrupt for each
  * pinctrl-single instance.
  */
-static void pcs_irq_chain_handler(unsigned int irq, struct irq_desc *desc)
+static void pcs_irq_chain_handler(struct irq_desc *desc)
 {
 	struct pcs_soc_data *pcs_soc = irq_desc_get_handler_data(desc);
 	struct irq_chip *chip;