sched/numa: Remove unused code from update_numa_stats()

With:

  commit 2d4056fa ("sched/numa: Remove numa_has_capacity()")

the local variables 'smt', 'cpus' and 'capacity' and their results are not used
anymore in numa_has_capacity()

Remove this unused code.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1535548752-4434-2-git-send-email-vincent.guittot@linaro.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/sched/fair.c

@@ -1463,8 +1463,7 @@ struct numa_stats {
  */
 static void update_numa_stats(struct numa_stats *ns, int nid)
 {
-	int smt, cpu, cpus = 0;
-	unsigned long capacity;
+	int cpu;
 
 	memset(ns, 0, sizeof(*ns));
 	for_each_cpu(cpu, cpumask_of_node(nid)) {
@@ -1473,26 +1472,8 @@ static void update_numa_stats(struct numa_stats *ns, int nid)
 		ns->nr_running += rq->nr_running;
 		ns->load += weighted_cpuload(rq);
 		ns->compute_capacity += capacity_of(cpu);
-
-		cpus++;
 	}
 
-	/*
-	 * If we raced with hotplug and there are no CPUs left in our mask
-	 * the @ns structure is NULL'ed and task_numa_compare() will
-	 * not find this node attractive.
-	 *
-	 * We'll detect a huge imbalance and bail there.
-	 */
-	if (!cpus)
-		return;
-
-	/* smt := ceil(cpus / capacity), assumes: 1 < smt_power < 2 */
-	smt = DIV_ROUND_UP(SCHED_CAPACITY_SCALE * cpus, ns->compute_capacity);
-	capacity = cpus / smt; /* cores */
-
-	capacity = min_t(unsigned, capacity,
-		DIV_ROUND_CLOSEST(ns->compute_capacity, SCHED_CAPACITY_SCALE));
 }
 
 struct task_numa_env {