cpumask: remove obsolete topology_core_siblings and topology_thread_siblings: s390

There were replaced by topology_core_cpumask and topology_thread_cpumask.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 5e0ad61..6e7211a 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -9,7 +9,6 @@
 
 extern cpumask_t cpu_core_map[NR_CPUS];
 
-#define topology_core_siblings(cpu)	(cpu_core_map[cpu])
 #define topology_core_cpumask(cpu)	(&cpu_core_map[cpu])
 
 int topology_set_cpu_management(int fc);