Docs: Add parameter descriptions for _wp_ajax_delete_comment_response().

Follow-up to [10204], [32652].

Props rejaulalomkhan, huzaifaalmesbah.
See #64224.

git-svn-id: https://develop.svn.wordpress.org/trunk@61508 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-admin/includes/ajax-actions.php

@@ -454,8 +454,8 @@ function wp_ajax_logged_in() {
  * @since 2.7.0
  * @access private
  *
- * @param int $comment_id
- * @param int $delta
+ * @param int $comment_id Comment ID.
+ * @param int $delta      Change in the number of total comments. Default -1.
  */
 function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) {
 	$total    = isset( $_POST['_total'] ) ? (int) $_POST['_total'] : 0;