ARM: bcm: stop selecing CONFIG_TICK_ONESHOT

ARCH_BCM_MOBILE is the only platform that selects CONFIG_TICK_ONESHOT,
the others stopped 12 years ago in commit 98fab064 ("ARM: Remove
unnecessary selection of TICK_ONESHOT").

This inconsistency caused a build regression after an otherwise
correct change to the timers subsystem:

kernel/time/tick-sched.c:1599:6: error: redefinition of 'tick_sched_timer_dying'
 1599 | void tick_sched_timer_dying(int cpu)
      |      ^
kernel/time/tick-sched.h:111:20: note: previous definition is here
  111 | static inline void tick_sched_timer_dying(int cpu) { }

Drop this dead select.

Fixes: 3aedb7fc ("tick/sched: Remove useless oneshot ifdeffery")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240228123850.3499024-2-arnd@kernel.orgSigned-off-by: Florian Fainelli <florian.fainelli@broadcom.com>

arch/arm/mach-bcm/Kconfig

@@ -93,7 +93,6 @@ config ARCH_BCM_MOBILE
 	select ARM_ERRATA_775420
 	select ARM_GIC
 	select GPIO_BCM_KONA
-	select TICK_ONESHOT
 	select HAVE_ARM_ARCH_TIMER
 	select PINCTRL
 	select ARCH_BCM_MOBILE_SMP if SMP