[MIPS] time: remove unused mips_timer_state()

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/time.c

@@ -50,8 +50,6 @@ int update_persistent_clock(struct timespec now)
 	return rtc_mips_set_mmss(now.tv_sec);
 }
 
-int (*mips_timer_state)(void);
-
 int null_perf_irq(void)
 {
 	return 0;