btrfs: drop unused parameter from btrfs_item_nr

Remove unused eb parameter from btrfs_item_nr

Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index e46e0ed..0a89439 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -791,7 +791,7 @@
 	if (found_key->type == BTRFS_INODE_REF_KEY) {
 		ptr = (unsigned long)btrfs_item_ptr(eb, slot,
 						    struct btrfs_inode_ref);
-		item = btrfs_item_nr(eb, slot);
+		item = btrfs_item_nr(slot);
 		total = btrfs_item_size(eb, item);
 		elem_size = sizeof(*iref);
 	} else {
@@ -905,7 +905,7 @@
 
 	eb = path->nodes[0];
 	slot = path->slots[0];
-	item = btrfs_item_nr(eb, slot);
+	item = btrfs_item_nr(slot);
 	di = btrfs_item_ptr(eb, slot, struct btrfs_dir_item);
 	cur = 0;
 	len = 0;