Remove markdown-it-toc because an errors are happening

browser/lib/markdown.js

@@ -1,7 +1,6 @@
 import markdownit from 'markdown-it'
 import emoji from 'markdown-it-emoji'
 import math from '@rokt33r/markdown-it-math'
-import tocAndAnchor from "markdown-it-toc-and-anchor"
 import _ from 'lodash'
 
 const katex = window.katex
@@ -37,9 +36,6 @@ var md = markdownit({
 md.use(emoji, {
   shortcuts: {}
 })
-md.use(tocAndAnchor, {
-  anchorLink: false
-})
 md.use(math, {
   inlineRenderer: function (str) {
     let output = ''