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diff --git a/www/lib/vis/examples/network/other/clustersOfclusters.html b/www/lib/vis/examples/network/other/clustersOfclusters.html
deleted file mode 100644
index 0e90bcf0..00000000
--- a/www/lib/vis/examples/network/other/clustersOfclusters.html
+++ /dev/null
@@ -1,75 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <title>Cluster Test</title>
-    <script type="text/javascript" src="../../../dist/vis.js"></script>
-    <link href="../../../dist/vis.css" rel="stylesheet" type="text/css"/>
-    <style type="text/css">
-        #network_graph {
-            width: 1000px;
-            height: 800px;
-            border: 1px solid lightgray;
-        }
-    </style>
-</head>
-<body onload="draw()">
-<p>
-    Clusters can contain other clusters, but clusters of a single node is only possible by adding
-<pre>allowSingleNodeCluster: true</pre>
-to clusterNodeProperties<br/>
-In this example repeatedly clicking on the node with open the Clusters.
-</p>
-<div id="network_graph"></div>
-<div id="info"></div>
-<script type="text/javascript">
-    var network;
-
-    var node_color = ['orange', 'green', 'red', 'yellow', 'cyan'];
-    var node_shape = ['star', 'database', 'diamond', 'square', 'triangle'];
-    var nodes = new vis.DataSet([
-        {id: 'x', label: 'Node X'},
-        {id: 'y', label: 'Node Y'},
-    ]);
-    var network_options = {};
-    var edges = new vis.DataSet([
-        {from: 'x', to: 'y'}
-    ]);
-
-    var cluster_id = 1;
-
-    function draw() {
-        network = new vis.Network(
-                document.getElementById('network_graph'),
-                {
-                    nodes: nodes,
-                    edges: edges
-                },
-                network_options
-        );
-        network.on('click', function (params) {
-            if (params.nodes.length == 1) {
-                if (network.isCluster(params.nodes[0]) == true) {
-                    network.openCluster(params.nodes[0]);
-                }
-            }
-        });
-        cluster();
-        cluster();
-        cluster();
-    }
-
-    function cluster() {
-        var clusterOptions = {
-            joinCondition: function (childOptions) {
-                console.log(childOptions);
-                return true;
-            },
-            clusterNodeProperties: {id: cluster_id, label: "Cluster " + cluster_id, color: node_color[cluster_id - 1], shape: node_shape[cluster_id - 1], allowSingleNodeCluster: true}
-        };
-        cluster_id++;
-        network.cluster(clusterOptions);
-    }
-</script>
-</body>
-</html>