fix(routes/cbc): fix CBC route to exclude text to speech widget (#20734)

CBC articles have a text to speech widget at the beginning of every
article, which is useless and add lots of noise. This PR removes it.

lib/routes/cbc/topics.ts

@@ -71,6 +71,7 @@ async function handler(ctx) {
                 const pubDate = head.datePublished;
                 const descriptionDom = $('div[data-cy=storyWrapper]');
                 descriptionDom.find('div[class=share]').remove();
+                descriptionDom.find('div[class^="textToSpeech"]').remove();
                 const description = descriptionDom.html();
 
                 return { title, author, pubDate, description, link };