Issue #2195779 by ParisLiakos: Remove aggregator_load_feed_items().

core/modules/aggregator/aggregator.pages.inc

-<?php
-
-/**
- * @file
- * User page callbacks for the Aggregator module.
- */
-
-/**
- * Loads and optionally filters feed items.
- *
- * @param string $type
- *   The type of filter for the items. Possible values are:
- *   - sum: No filtering.
- *   - source: Filter the feed items, limiting the result to items from a
- *     single source.
- * @param mixed $data
- *   Feed data used for filtering. The type and value of $data depends on $type:
- *   - source: $data is an object with $data->fid identifying the feed used to
- *     as filter.
- *   The $data parameter is not used when $type is 'sum'.
- * @param int $limit
- *   (optional) The number of records to return. Defaults to 20.
- *
- * @deprecated Use \Drupal\aggregator\ItemStorageController::loadAll() for
- *   loading all feed items, \Drupal\aggregator\ItemStorageController::loadByFeed()
- *
- * @return \Drupal\aggregator\ItemInterface[]
- *   An array of the feed items.
- */
-function aggregator_load_feed_items($type, $data = NULL, $limit = 20) {
-  $storage_controller = \Drupal::entityManager()->getStorageController('aggregator_item');
-  switch ($type) {
-    case 'sum':
-      return $storage_controller->loadAll($limit);
-
-    case 'source':
-      return $storage_controller->loadByFeed($data->id(), $limit);
-  }
-}