ocfs2: remove unused handle argument from ocfs2_meta_lock_full()

Now that this is unused and all callers pass NULL, we can safely remove it.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 31bda54..27f8dc4 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -421,7 +421,7 @@
 
 	mutex_lock(&alloc_inode->i_mutex);
 
-	status = ocfs2_meta_lock(alloc_inode, NULL, &bh, 1);
+	status = ocfs2_meta_lock(alloc_inode, &bh, 1);
 	if (status < 0) {
 		mutex_unlock(&alloc_inode->i_mutex);
 		iput(alloc_inode);