ARM: shmobile: sh73a0: Remove warning about SMP

Remove warning about SMP not working with the
clock initialisation sheme used for reference DT.

This is resolved by not selecting CONFIG_PREEMPT.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/setup-sh73a0.c

@@ -879,14 +879,6 @@ void __init sh73a0_add_early_devices(void)
 
 #ifdef CONFIG_USE_OF
 
-/* Please note that the clock initialisation shcheme used in
- * sh73a0_add_early_devices_dt() and sh73a0_add_standard_devices_dt()
- * does not work with SMP as there is a yet to be resolved lock-up in
- * workqueue initialisation.
- *
- * CONFIG_SMP should be disabled when using this code.
- */
-
 void __init sh73a0_add_early_devices_dt(void)
 {
 	shmobile_setup_delay(1196, 44, 46); /* Cortex-A9 @ 1196MHz */