on_each_cpu(): kill unused 'retry' parameter

It's not even passed on to smp_call_function() anymore, since that
was removed. So kill it.

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 7a9ae83..4410f17 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -246,7 +246,7 @@
 
 void flush_tlb_all(void)
 {
-	on_each_cpu(flush_tlb_all_ipi, NULL, 1, 1);
+	on_each_cpu(flush_tlb_all_ipi, NULL, 1);
 }
 
 static void flush_tlb_mm_ipi(void *mm)
@@ -366,7 +366,7 @@
 		.addr2 = end,
 	};
 
-	on_each_cpu(flush_tlb_kernel_range_ipi, &fd, 1, 1);
+	on_each_cpu(flush_tlb_kernel_range_ipi, &fd, 1);
 }
 
 static void flush_tlb_page_ipi(void *info)