arm, smp: Remove trace_.*_rcuidle() usage

None of these functions should ever be ran with RCU disabled anymore.

Specifically, do_handle_IPI() is only called from handle_IPI() which
explicitly does irq_enter()/irq_exit() which ensures RCU is watching.

The problem with smp_cross_call() was, per commit description:

   7c64cc0531fa ("arm: Use _rcuidle for smp_cross_call() tracepoints")

... that cpuidle_enter_state_coupled() already had RCU disabled, but that's
long been fixed by commit:

  1098582a0f6c ("sched,idle,rcu: Push rcu_idle deeper into the idle path")

Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Tested-by: Tony Lindgren <[email protected]>
Tested-by: Ulf Hansson <[email protected]>
Reviewed-by: Ulf Hansson <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Acked-by: Frederic Weisbecker <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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