befs: in memory free_node_ptr and max_size never read

The only place the values of free_node_ptr and max_size are read is in
befs_dump_index_entry(), which both times it is called, it is passed the on
disk superblock. Removing assignment of unused values.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
diff --git a/fs/befs/btree.c b/fs/befs/btree.c
index 679f69d..e8827af 100644
--- a/fs/befs/btree.c
+++ b/fs/befs/btree.c
@@ -156,8 +156,6 @@
 	sup->max_depth = fs32_to_cpu(sb, od_sup->max_depth);
 	sup->data_type = fs32_to_cpu(sb, od_sup->data_type);
 	sup->root_node_ptr = fs64_to_cpu(sb, od_sup->root_node_ptr);
-	sup->free_node_ptr = fs64_to_cpu(sb, od_sup->free_node_ptr);
-	sup->max_size = fs64_to_cpu(sb, od_sup->max_size);
 
 	brelse(bh);
 	if (sup->magic != BEFS_BTREE_MAGIC) {