[patch] btrfs: remove dead code

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merge is always NULL at this point.

regards,
dan carpenter

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

--- orig/fs/btrfs/extent_map.c	2009-03-26 17:07:20.000000000 +0300
+++ devel/fs/btrfs/extent_map.c	2009-03-26 17:07:39.000000000 +0300
@@ -234,7 +234,6 @@
 	rb = tree_insert(&tree->map, em->start, &em->rb_node);
 	if (rb) {
 		ret = -EEXIST;
-		free_extent_map(merge);
 		goto out;
 	}
 	atomic_inc(&em->refs);
--
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