Remove obsolete `$wpdb` reference from `get_comments()` docs.

props lamosty.
fixes #31748.
Built from https://develop.svn.wordpress.org/trunk@31870


git-svn-id: http://core.svn.wordpress.org/trunk@31849 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/comment.php

@@ -218,8 +218,6 @@ function get_comment(&$comment, $output = OBJECT) {
  *
  * @since 2.7.0
  *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
  * @param string|array $args Optional. Array or string of arguments. See {@see WP_Comment_Query::parse_query()}
  *                           for information on accepted arguments. Default empty.
  * @return int|array List of comments or number of found comments if `$count` argument is true.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta2-31869';
+$wp_version = '4.2-beta2-31870';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.