irqchip/gic-v5: Remove the redundant ITS cache invalidation

An ITS cache invalidation has been performed immediately after programming
the L2 DTE in gicv5_its_device_register(). No need to perform it again
right after a successful gicv5_its_device_register().

Remove it.

Signed-off-by: Zenghui Yu <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>
Reviewed-by: Marc Zyngier <[e-mail]>
Link: https://lore.kernel.org/all/[e-mail]

drivers/irqchip/irq-gic-v5-its.c

···
 		goto out_dev_free;
 	}
 
-	gicv5_its_device_cache_inv(its, its_dev);
-
 	its_dev->its_node = its;
 
 	its_dev->event_map = (unsigned long *)bitmap_zalloc(its_dev->num_events, GFP_KERNEL);