remove a misleading comment
diff --git a/lib/commit_graph.c b/lib/commit_graph.c
index c908949..d776a3f 100644
--- a/lib/commit_graph.c
+++ b/lib/commit_graph.c
@@ -152,7 +152,6 @@ add_node_to_iter_list(struct got_commit_graph *graph,
struct got_commit_graph_node *n, *next;
n = TAILQ_FIRST(&graph->iter_list);
- /* Ensure that an iteration in progress will see this new commit. */
while (n) {
next = TAILQ_NEXT(n, entry);
if (next && node->timestamp >= next->timestamp) {