Load: remove class-feed.php (There is no class named Feed or WP_Feed, it just loads other classes) and, instead, move the require calls to the only place they are ever included: inside fetch_feed(). This simplifies the include path.

Tested with this feed in a widget: `http://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml`.

See #36335.


git-svn-id: https://develop.svn.wordpress.org/trunk@38374 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/update-core.php

@@ -706,6 +706,7 @@ $_old_files = array(
 // 4.6
 'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
 // 4.7
+'wp-includes/class-feed.php',
 'wp-includes/locale.php',
 'wp-includes/session.php',
 );