[SPARC64]: Kill starfire_cookie from SBUS/PCI.

Totally unused.

We need to traverse the list of global IRQ translaters,
so storing it in the per-bus structures was useless.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/starfire.c b/arch/sparc64/kernel/starfire.c
index ae859d4..b930fee 100644
--- a/arch/sparc64/kernel/starfire.c
+++ b/arch/sparc64/kernel/starfire.c
@@ -54,7 +54,7 @@
 static struct starfire_irqinfo *sflist = NULL;
 
 /* Beam me up Scott(McNeil)y... */
-void *starfire_hookup(int upaid)
+void starfire_hookup(int upaid)
 {
 	struct starfire_irqinfo *p;
 	unsigned long treg_base, hwmid, i;
@@ -81,8 +81,6 @@
 	p->upaid = upaid;
 	p->next = sflist;
 	sflist = p;
-
-	return (void *) p;
 }
 
 unsigned int starfire_translate(unsigned long imap,