[ARM] Remove SA1100 PM prepare/finish ops

These are empty, unnecessary functions, so remove them.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-sa1100/pm.c

@@ -134,30 +134,12 @@ unsigned long sleep_phys_sp(void *sp)
 	return virt_to_phys(sp);
 }
 
-/*
- * Called after processes are frozen, but before we shut down devices.
- */
-static int sa11x0_pm_prepare(suspend_state_t state)
-{
-	return 0;
-}
-
-/*
- * Called after devices are re-setup, but before processes are thawed.
- */
-static int sa11x0_pm_finish(suspend_state_t state)
-{
-	return 0;
-}
-
 /*
  * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
  */
 static struct pm_ops sa11x0_pm_ops = {
 	.pm_disk_mode	= PM_DISK_FIRMWARE,
-	.prepare	= sa11x0_pm_prepare,
 	.enter		= sa11x0_pm_enter,
-	.finish		= sa11x0_pm_finish,
 };
 
 static int __init sa11x0_pm_init(void)