add remove-fpt helper function

lib/rewrite-local-links.js

@@ -9,6 +9,7 @@ const nonEnterpriseDefaultVersion = require('./non-enterprise-default-version')
 const allVersions = require('./all-versions')
 const supportedVersions = Object.keys(allVersions)
 const supportedPlans = Object.values(allVersions).map(v => v.plan)
+const removeFPTFromPath = require('./remove-fpt-from-path')
 
 // Content authors write links like `/some/article/path`, but they need to be
 // rewritten on the fly to match the current language and page version
@@ -79,7 +80,7 @@ function getNewHref (link, languageCode, version) {
     // ------ END ONE-OFF OVERRIDES ------//
 
     // update the version in the link
-    newHref = newHref.replace(versionFromHref, version)
+    newHref = removeFPTFromPath(newHref.replace(versionFromHref, version))
   }
 
   newHref = newHref.replace(patterns.trailingSlash, '$1')