removed all links to plotly

templates/stats.html

@@ -31,10 +31,10 @@
 						}
 						var trace = {"y": y, "x": semester, "type": "scatter"};
 						var layout = {
-							title: 'Veranstaltungen pro Semester',
-							showlegend: false
+							"title": 'Veranstaltungen pro Semester',
+							"showlegend": false
 						};
-						Plotly.newPlot('tester', [trace], layout, {showLink: false});
+						Plotly.newPlot('tester', [trace], layout, { "showLink": false, "modeBarButtonsToRemove": ['sendDataToCloud','hoverCompareCartesian'], "displaylogo": false});
 					}
 				});
 			</script>