don't bother with passing superblock to oprofile_create_stats_files()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
index 38b6fc0..13e8e3f 100644
--- a/drivers/oprofile/oprofile_stats.h
+++ b/drivers/oprofile/oprofile_stats.h
@@ -29,6 +29,6 @@
 struct dentry;
 
 /* create the stats/ dir */
-void oprofile_create_stats_files(struct super_block *sb, struct dentry *root);
+void oprofile_create_stats_files(struct dentry *root);
 
 #endif /* OPROFILE_STATS_H */