diff --git a/src/wp-includes/comment.php b/src/wp-includes/comment.php
index 50e0082283..bf75246383 100644
--- a/src/wp-includes/comment.php
+++ b/src/wp-includes/comment.php
@@ -358,12 +358,8 @@ function get_lastcommentmodified( $timezone = 'server' ) {
 /**
  * Retrieves the total comment counts for the whole site or a single post.
  *
- * Unlike wp_count_comments(), this function always returns the live comment counts without caching.
- *
  * @since 2.0.0
  *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
  * @param int $post_id Optional. Restrict the comment counts to the given post. Default 0, which indicates that
  *                     comment counts for the whole site will be retrieved.
  * @return int[] {
@@ -379,8 +375,6 @@ function get_lastcommentmodified( $timezone = 'server' ) {
  * }
  */
 function get_comment_count( $post_id = 0 ) {
-	global $wpdb;
-
 	$post_id = (int) $post_id;
 
 	$comment_count = array(