drivers/base/node: remove register_memory_blocks_under_node() function call from register_one_node

register_one_node() is now only called via cpu_up() →
__try_online_node() during CPU hotplug operations to online a node.

At this stage, the node has not yet had any memory added.  As a result,
there are no memory blocks to walk or register, so calling
register_memory_blocks_under_node() is unnecessary.

Therefore, the call to register_memory_blocks_under_node() has been
removed from register_one_node().

Link: https://lkml.kernel.org/r/ecf07075b1a41015fcf58823997d5c2ed7b8c18f.1748452242.git.donettom@linux.ibm.com


Signed-off-by: Donet Tom <donettom@linux.ibm.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>