powerpc: Remove redundant sysfs_remove_file calls for cache info

When removing a directory, the sysfs core takes care of removing files
in the directory (see sysfs_remove_dir()).  So when we are about to
delete a kobject (and thus cause its sysfs directory to be removed),
we don't have to explicitly remove the files attached to it, although
it's harmless to do so.
Signed-off-by: NNathan Lynch <ntl@pobox.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/kernel/sysfs.c

@@ -641,16 +641,9 @@ static void remove_cache_info(struct sys_device *sysdev)
 	int cpu = sysdev->id;
 
 	cache_desc = per_cpu(cache_desc, cpu);
-	if (cache_desc != NULL) {
-		sysfs_remove_file(&cache_desc->kobj, &cache_size_attr.attr);
-		sysfs_remove_file(&cache_desc->kobj, &cache_line_size_attr.attr);
-		sysfs_remove_file(&cache_desc->kobj, &cache_type_attr.attr);
-		sysfs_remove_file(&cache_desc->kobj, &cache_level_attr.attr);
-		sysfs_remove_file(&cache_desc->kobj, &cache_nr_sets_attr.attr);
-		sysfs_remove_file(&cache_desc->kobj, &cache_assoc_attr.attr);
-
+	if (cache_desc != NULL)
 		kobject_put(&cache_desc->kobj);
-	}
+
 	cache_toplevel = per_cpu(cache_toplevel, cpu);
 	if (cache_toplevel != NULL)
 		kobject_put(cache_toplevel);