[SPARC]: Kill __irq_itoa().

This ugly hack was long overdue to die.

It was a way to print out Sparc interrupts in a more freindly format,
since IRQ numbers were arbitrary opaque 32-bit integers which vectored
into PIL levels.  These 32-bit integers were not necessarily in the
0-->NR_IRQS range, but the PILs they vectored to were.

The idea now is that we will increase NR_IRQS a little bit and use a
virtual<-->real IRQ number mapping scheme similar to PowerPC.

That makes this IRQ printing hack irrelevant, and furthermore only a
handful of drivers actually used __irq_itoa() making it even less
useful.

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/serial/sunsu.c

@@ -1295,9 +1295,9 @@ static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up, int channel)
 	if (up->port.type == PORT_UNKNOWN)
 		return -1;
 
-	printk(KERN_INFO "su%d at 0x%p (irq = %s) is a %s\n",
+	printk(KERN_INFO "su%d at 0x%p (irq = %d) is a %s\n",
 	       channel,
-	       up->port.membase, __irq_itoa(up->port.irq),
+	       up->port.membase, up->port.irq,
 	       sunsu_type(&up->port));
 
 #ifdef CONFIG_SERIO