remove unneeded note

public/templates/viewer.tmpl

@@ -37,10 +37,6 @@
         if (window.WebGLRenderingContext) {
             const canvas = document.createElement('canvas');
             try {
-                // Note that { failIfMajorPerformanceCaveat: true } can be passed as a second argument
-                // to canvas.getContext(), causing the check to fail if hardware rendering is not available. See
-                // https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/getContext
-                // for more details.
                 const context = canvas.getContext('webgl2') || canvas.getContext('webgl');
                 if (context && typeof context.getParameter == 'function') {
                     return true;