clocksource/drivers/sp804: Remove unused sp804_timer_disable() and timer-sp804.h

Since commit 7484c727b6 ("ARM: realview: delete the RealView board
files") and commit 16956fed35 ("ARM: versatile: switch to DT only
booting and remove legacy code"), there's no one to use the functions
defined or declared in include/clocksource/timer-sp804.h. Delete it.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200918132237.3552-3-thunder.leizhen@huawei.com

drivers/clocksource/timer-sp804.c

@@ -18,8 +18,6 @@
 #include <linux/of_irq.h>
 #include <linux/sched_clock.h>
 
-#include <clocksource/timer-sp804.h>
-
 #include "timer-sp.h"
 
 static long __init sp804_get_clock_rate(struct clk *clk, const char *name)
@@ -67,11 +65,6 @@ static u64 notrace sp804_read(void)
 	return ~readl_relaxed(sched_clock_base + TIMER_VALUE);
 }
 
-void __init sp804_timer_disable(void __iomem *base)
-{
-	writel(0, base + TIMER_CTRL);
-}
-
 int  __init __sp804_clocksource_and_sched_clock_init(void __iomem *base,
 						     const char *name,
 						     struct clk *clk,

include/clocksource/timer-sp804.h

@@ -1,29 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __CLKSOURCE_TIMER_SP804_H
-#define __CLKSOURCE_TIMER_SP804_H
-
-struct clk;
-
-int __sp804_clocksource_and_sched_clock_init(void __iomem *,
-					     const char *, struct clk *, int);
-int __sp804_clockevents_init(void __iomem *, unsigned int,
-			     struct clk *, const char *);
-void sp804_timer_disable(void __iomem *);
-
-static inline void sp804_clocksource_init(void __iomem *base, const char *name)
-{
-	__sp804_clocksource_and_sched_clock_init(base, name, NULL, 0);
-}
-
-static inline void sp804_clocksource_and_sched_clock_init(void __iomem *base,
-							  const char *name)
-{
-	__sp804_clocksource_and_sched_clock_init(base, name, NULL, 1);
-}
-
-static inline void sp804_clockevents_init(void __iomem *base, unsigned int irq, const char *name)
-{
-	__sp804_clockevents_init(base, irq, NULL, name);
-
-}
-#endif