Remove some unused globals and/or their docs.

See ##33491.


git-svn-id: https://develop.svn.wordpress.org/trunk@34446 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-media-list-table.php

@@ -77,8 +77,6 @@ class WP_Media_List_Table extends WP_List_Table {
 	}
 
 	/**
-	 *
-	 * @global wpdb  $wpdb
 	 * @global array $post_mime_types
 	 * @global array $avail_post_mime_types
 	 * @return array

src/wp-includes/canonical.php

@@ -533,12 +533,11 @@ function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $ur
  * @since 2.3.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
- * @global WP_Rewrite $wp_rewrite
  *
  * @return false|string The correct URL if one is found. False on failure.
  */
 function redirect_guess_404_permalink() {
-	global $wpdb, $wp_rewrite;
+	global $wpdb;
 
 	if ( get_query_var('name') ) {
 		$where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%');

src/wp-includes/comment-functions.php

@@ -162,7 +162,6 @@ function get_approved_comments( $post_id, $args = array() ) {
  *
  * @since 2.0.0
  *
- * @global wpdb   $wpdb WordPress database abstraction object.
  * @global object $comment
  *
  * @param WP_Comment|string|int $comment Comment to retrieve.

src/wp-includes/post-functions.php

@@ -5406,12 +5406,11 @@ function update_post_cache( &$posts ) {
  * @since 2.0.0
  *
  * @global bool $_wp_suspend_cache_invalidation
- * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @param int|WP_Post $post Post ID or post object to remove from the cache.
  */
 function clean_post_cache( $post ) {
-	global $_wp_suspend_cache_invalidation, $wpdb;
+	global $_wp_suspend_cache_invalidation;
 
 	if ( ! empty( $_wp_suspend_cache_invalidation ) )
 		return;

src/wp-includes/post-template.php

@@ -528,13 +528,12 @@ function body_class( $class = '' ) {
  * @since 2.8.0
  *
  * @global WP_Query $wp_query
- * @global wpdb     $wpdb
  *
  * @param string|array $class One or more classes to add to the class list.
  * @return array Array of classes.
  */
 function get_body_class( $class = '' ) {
-	global $wp_query, $wpdb;
+	global $wp_query;
 
 	$classes = array();
 

src/wp-includes/taxonomy-functions.php

@@ -3869,8 +3869,6 @@ function _wp_check_split_terms_in_menus( $term_id, $new_term_id, $term_taxonomy_
  * @ignore
  * @since 4.3.0
  *
- * @global wpdb $wpdb
- *
  * @param int    $term_id          ID of the formerly shared term.
  * @param int    $new_term_id      ID of the new term created for the $term_taxonomy_id.
  * @param int    $term_taxonomy_id ID for the term_taxonomy row affected by the split.

src/wp-includes/user-functions.php

@@ -859,7 +859,6 @@ function setup_userdata($for_user_id = '') {
  *
  * @since 2.3.0
  *
- * @global wpdb $wpdb WordPress database object for queries.
  * @global int  $blog_id
  *
  * @param array|string $args {