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diff --git a/www/lib/vis/examples/network/layout/hierarchicalLayout.html b/www/lib/vis/examples/network/layout/hierarchicalLayout.html
deleted file mode 100644
index d8e317ec..00000000
--- a/www/lib/vis/examples/network/layout/hierarchicalLayout.html
+++ /dev/null
@@ -1,114 +0,0 @@
-<!doctype html>
-<html>
-<head>
-    <title>Network | Hierarchical layout</title>
-
-    <style type="text/css">
-        body {
-            font: 10pt sans;
-        }
-
-        #mynetwork {
-            width: 600px;
-            height: 600px;
-            border: 1px solid lightgray;
-        }
-    </style>
-
-    <script type="text/javascript" src="../exampleUtil.js"></script>
-    <script type="text/javascript" src="../../../dist/vis.js"></script>
-    <link href="../../../dist/vis-network.min.css" rel="stylesheet" type="text/css"/>
-
-
-    <script type="text/javascript">
-        var nodes = null;
-        var edges = null;
-        var network = null;
-
-        function destroy() {
-            if (network !== null) {
-                network.destroy();
-                network = null;
-            }
-        }
-
-        function draw() {
-            destroy();
-            // randomly create some nodes and edges
-            var nodeCount = document.getElementById('nodeCount').value;
-            var data = getScaleFreeNetwork(nodeCount)
-
-            // create a network
-            var container = document.getElementById('mynetwork');
-            var directionInput = document.getElementById("direction").value;
-            var options = {
-                layout: {
-                    hierarchical: {
-                        direction: directionInput
-                    }
-                }
-            };
-            network = new vis.Network(container, data, options);
-
-            // add event listeners
-            network.on('select', function (params) {
-                document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
-            });
-        }
-
-    </script>
-    <script src="../../googleAnalytics.js"></script>
-</head>
-
-<body onload="draw();">
-<h2>Hierarchical Layout - Scale-Free-Network</h2>
-
-<div style="width:700px; font-size:14px; text-align: justify;">
-    This example shows the randomly generated <b>scale-free-network</b> set of nodes and connected edges from example 2.
-    In this example, hierarchical layout has been enabled and the vertical levels are determined automatically.
-</div>
-<br/>
-
-<form onsubmit="draw(); return false;">
-    <label for="nodeCount">Number of nodes:</label>
-    <input id="nodeCount" type="text" value="25" style="width: 50px;">
-    <input type="submit" value="Go">
-</form>
-<p>
-    <input type="button" id="btn-UD" value="Up-Down">
-    <input type="button" id="btn-DU" value="Down-Up">
-    <input type="button" id="btn-LR" value="Left-Right">
-    <input type="button" id="btn-RL" value="Right-Left">
-    <input type="hidden" id='direction' value="UD">
-</p>
-
-<script language="javascript">
-    var directionInput = document.getElementById("direction");
-    var btnUD = document.getElementById("btn-UD");
-    btnUD.onclick = function () {
-        directionInput.value = "UD";
-        draw();
-    }
-    var btnDU = document.getElementById("btn-DU");
-    btnDU.onclick = function () {
-        directionInput.value = "DU";
-        draw();
-    };
-    var btnLR = document.getElementById("btn-LR");
-    btnLR.onclick = function () {
-        directionInput.value = "LR";
-        draw();
-    };
-    var btnRL = document.getElementById("btn-RL");
-    btnRL.onclick = function () {
-        directionInput.value = "RL";
-        draw();
-    };
-</script>
-<br>
-
-<div id="mynetwork"></div>
-
-<p id="selection"></p>
-</body>
-</html>