arch_topology: Drop LLC identifier stash from the CPU topology

Since the cacheinfo LLC information is used directly in arch_topology,
there is no need to parse and store the LLC ID information only for
ACPI systems in the CPU topology.

Remove the redundant LLC ID from the generic CPU arch_topology
information.

Link: https://lore.kernel.org/r/20220704101605.1318280-13-sudeep.holla@arm.com
Tested-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

drivers/base/arch_topology.c

@@ -752,7 +752,6 @@ void __init reset_cpu_topology(void)
 		cpu_topo->core_id = -1;
 		cpu_topo->cluster_id = -1;
 		cpu_topo->package_id = -1;
-		cpu_topo->llc_id = -1;
 
 		clear_cpu_topology(cpu);
 	}

include/linux/arch_topology.h

@@ -68,7 +68,6 @@ struct cpu_topology {
 	int core_id;
 	int cluster_id;
 	int package_id;
-	int llc_id;
 	cpumask_t thread_sibling;
 	cpumask_t core_sibling;
 	cpumask_t cluster_sibling;