code: function unmountRedundant(items, tags) {
  
    var i = tags.length,
      j = items.length,
      t
  
    while (i > j) {
      t = tags[--i]
      tags.splice(i, 1)
      t.unmount()
    }
  }
docs: Unmount the redundant tags
  @param   { Array } items - array containing the current items to loop
  @param   { Array } tags - array containing all the children tags