[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>
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index e2d9a7c..575b1f7 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -400,7 +400,7 @@
 	}
 
 	driver->regs->uctrl_intr = UCTRL_INTR_RXNE_REQ|UCTRL_INTR_RXNE_MSK;
-	printk("uctrl: 0x%x (irq %s)\n", driver->regs, __irq_itoa(driver->irq));
+	printk("uctrl: 0x%x (irq %d)\n", driver->regs, driver->irq);
 	uctrl_get_event_status();
 	uctrl_get_external_status();
         return 0;