RISC-V: remove timer leftovers

This code is currently unused and will be added back later in a different
place with the real interrupt and clocksource support.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

arch/riscv/kernel/time.c

@@ -13,32 +13,11 @@
  */
 
 #include <linux/clocksource.h>
-#include <linux/clockchips.h>
 #include <linux/delay.h>
-
-#ifdef CONFIG_RISCV_TIMER
-#include <linux/timer_riscv.h>
-#endif
-
 #include <asm/sbi.h>
 
 unsigned long riscv_timebase;
 
-DECLARE_PER_CPU(struct clock_event_device, riscv_clock_event);
-
-void riscv_timer_interrupt(void)
-{
-#ifdef CONFIG_RISCV_TIMER
-	/*
-	 * FIXME: This needs to be cleaned up along with the rest of the IRQ
-	 * handling cleanup.  See irq.c for more details.
-	 */
-	struct clock_event_device *evdev = this_cpu_ptr(&riscv_clock_event);
-
-	evdev->event_handler(evdev);
-#endif
-}
-
 void __init init_clockevent(void)
 {
 	timer_probe();