Index: wp-includes/SimplePie/Item.php
===================================================================
--- wp-includes/SimplePie/Item.php	(revision 54613)
+++ wp-includes/SimplePie/Item.php	(working copy)
@@ -1705,7 +1705,6 @@
 			$expression = null;
 			$framerate = null;
 			$height = null;
-			$javascript = null;
 			$lang = null;
 			$length = null;
 			$medium = null;
@@ -1745,7 +1744,6 @@
 							$expression = null;
 							$framerate = null;
 							$height = null;
-							$javascript = null;
 							$lang = null;
 							$length = null;
 							$medium = null;
@@ -2367,7 +2365,6 @@
 						$expression = null;
 						$framerate = null;
 						$height = null;
-						$javascript = null;
 						$lang = null;
 						$length = null;
 						$medium = null;
@@ -2774,7 +2771,6 @@
 					$expression = null;
 					$framerate = null;
 					$height = null;
-					$javascript = null;
 					$lang = null;
 					$length = null;
 					$medium = null;
@@ -2817,7 +2813,6 @@
 					$expression = null;
 					$framerate = null;
 					$height = null;
-					$javascript = null;
 					$lang = null;
 					$length = null;
 					$medium = null;
@@ -2852,7 +2847,6 @@
 					$expression = null;
 					$framerate = null;
 					$height = null;
-					$javascript = null;
 					$lang = null;
 					$length = null;
 					$medium = null;
Index: wp-includes/SimplePie/Locator.php
===================================================================
--- wp-includes/SimplePie/Locator.php	(revision 54613)
+++ wp-includes/SimplePie/Locator.php	(working copy)
@@ -413,9 +413,9 @@
 			if (preg_match('/(feed|rss|rdf|atom|xml)/i', $value))
 			{
 				$this->checked_feeds++;
-				$headers = array(
-					'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
-				);
+				// $headers = array(
+				// 	'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
+				// );
 				$feed = $this->registry->create('File', array($value, $this->timeout, 5, null, $this->useragent, $this->force_fsockopen, $this->curl_options));
 				if ($feed->success && ($feed->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($feed->status_code === 200 || $feed->status_code > 206 && $feed->status_code < 300)) && $this->is_feed($feed))
 				{
Index: wp-includes/class-wp-comment-query.php
===================================================================
--- wp-includes/class-wp-comment-query.php	(revision 54613)
+++ wp-includes/class-wp-comment-query.php	(working copy)
@@ -584,8 +584,6 @@
 		if ( ! empty( $this->query_vars['include_unapproved'] ) ) {
 			$include_unapproved = wp_parse_list( $this->query_vars['include_unapproved'] );
 
-			$unapproved_ids    = array();
-			$unapproved_emails = array();
 			foreach ( $include_unapproved as $unapproved_identifier ) {
 				// Numeric values are assumed to be user IDs.
 				if ( is_numeric( $unapproved_identifier ) ) {
@@ -1013,13 +1011,10 @@
 	 *
 	 * @since 4.4.0
 	 *
-	 * @global wpdb $wpdb WordPress database abstraction object.
-	 *
 	 * @param WP_Comment[] $comments Array of top-level comments whose descendants should be filled in.
 	 * @return array
 	 */
 	protected function fill_descendants( $comments ) {
-		global $wpdb;
 
 		$levels = array(
 			0 => wp_list_pluck( $comments, 'comment_ID' ),
Index: wp-includes/feed-atom.php
===================================================================
--- wp-includes/feed-atom.php	(revision 54613)
+++ wp-includes/feed-atom.php	(working copy)
@@ -6,7 +6,6 @@
  */
 
 header( 'Content-Type: ' . feed_content_type( 'atom' ) . '; charset=' . get_option( 'blog_charset' ), true );
-$more = 1;
 
 echo '<?xml version="1.0" encoding="' . get_option( 'blog_charset' ) . '"?' . '>';