fix plotly layout

docs/scripts/mathjaxhelper.js

@@ -116,9 +116,7 @@ window.MathJax = {
         document$.subscribe(() => {
             for (const div of document.getElementsByClassName("plotlyPlaceholder")) {
                 Plotly.d3.json(div.getAttribute("data-plotlySource"), function(error, fig) {
-                    Plotly.plot(div.getAttribute("id"), fig.data, fig.layout).then(
-                        function(value) {Plotly.relayout(div.getAttribute("id"), {height: ' '})}
-                    )
+                    Plotly.plot(div.getAttribute("id"), fig.data, fig.layout)
                   }
                 );
             };