remove redundant code

src/client/updateClientMetaInfo.js

@@ -18,7 +18,7 @@ const tags = [
  *
  * @param  {Object} newInfo - the meta info to update to
  */
-export default function updateClientMetaInfo (newInfo, $root) {
+export default function updateClientMetaInfo (newInfo) {
   const htmlTag = document.getElementsByTagName('html')[0]
   // if this is not a server render, then update
   if (htmlTag.getAttribute(SERVER_RENDERED_ATTRIBUTE) === null) {

src/shared/plugin.js

@@ -28,7 +28,7 @@ export default function VueMeta (Vue) {
         requestId = null
 
         // update the meta info
-        updateClientMetaInfo(getMetaInfo(this.$root), this.$root)
+        updateClientMetaInfo(getMetaInfo(this.$root))
       })
     }
   })