feat(PLOS): Update theme with new semantic selectors

src/themes/plos/index.ts

@@ -1,33 +1,3 @@
 import { load } from '../../shared/js'
 
 load()
-
-/*
-This is old code, currently commented out with the view to
-consolidating in shared.
-
-export const init = (): void => {
-  const referenceListItemSel = '[itemprop="references"] > li'
-  const datePublishedSel = '[itemprop="datePublished"]'
-  const publicationIssueTitleSel =
-    '[itemtype="https://schema.org/PublicationIssue"] [itemprop="title"]'
-
-  document.querySelectorAll(referenceListItemSel).forEach(node => {
-    // If PublicationIssue title node exists,
-    const publicationIssueTitle = node.querySelector(publicationIssueTitleSel)
-
-    // Move last datePublished after PublicationIssue title.
-    const datePublished = document.querySelectorAll(datePublishedSel)
-    const lastDatePublished = datePublished[datePublished.length - 1]
-
-    if (publicationIssueTitle && publicationIssueTitle.parentNode) {
-      publicationIssueTitle.parentNode.insertBefore(
-        lastDatePublished,
-        publicationIssueTitle.nextSibling
-      )
-    }
-  })
-}
-
-document.addEventListener('DOMContentLoaded', init)
-*/