Don't redeclare ll_local_timer_interrupt.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/sibyte/sb1250/time.c

diff --git a/arch/mips/sibyte/sb1250/time.c b/arch/mips/sibyte/sb1250/time.c
index 0ffbc83..6f87f52 100644
--- a/arch/mips/sibyte/sb1250/time.c
+++ b/arch/mips/sibyte/sb1250/time.c
@@ -100,7 +100,6 @@
 
 void sb1250_timer_interrupt(struct pt_regs *regs)
 {
-	extern asmlinkage void ll_local_timer_interrupt(int irq, struct pt_regs *regs);
 	int cpu = smp_processor_id();
 	int irq = K_INT_TIMER_0 + cpu;