hfsplus: silence a few debug printks

Turn a few noisy debug printks that show up during xfstests into
complied out debug print statements.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index 29da657..c8aa165 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -358,7 +358,7 @@
 
 	// move down?
 	if (!node->prev && !node->next) {
-		printk(KERN_DEBUG "hfs_btree_del_level\n");
+		dprint(DBG_BNODE_MOD, "hfs_btree_del_level\n");
 	}
 	if (!node->parent) {
 		tree->root = 0;