x86: move cpu_exit_clear to process_32.c

Take it out of smpboot.c, and move it to process_32.c, closer
to its only user.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 820c23d..67af727 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -181,7 +181,7 @@
 	map_cpu_to_node(cpu, node);
 }
 
-static void numa_remove_cpu(int cpu)
+void numa_remove_cpu(int cpu)
 {
 	cpu_2_logical_apicid[cpu] = BAD_APICID;
 	unmap_cpu_to_node(cpu);
@@ -1227,23 +1227,6 @@
 
 #ifdef CONFIG_HOTPLUG_CPU
 
-#  ifdef CONFIG_X86_32
-void cpu_exit_clear(void)
-{
-	int cpu = raw_smp_processor_id();
-
-	idle_task_exit();
-
-	cpu_uninit();
-	irq_ctx_exit(cpu);
-
-	cpu_clear(cpu, cpu_callout_map);
-	cpu_clear(cpu, cpu_callin_map);
-
-	numa_remove_cpu(cpu);
-}
-#  endif /* CONFIG_X86_32 */
-
 static void remove_siblinginfo(int cpu)
 {
 	int sibling;