EPiServer Admin plugin - Reindex Soft Links

SoftLinkIndexerTool.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SoftLinkIndexerTool.aspx.cs" Inherits="ChildrenGridView.Plugins.SoftLinkIndexerTool" %>

<asp:Content ContentPlaceHolderID="MainRegion" runat="server">
    <asp:Button runat="server" Text="Run" OnClick="OnClick"/>

    <asp:Label ID="lblResult" runat="server" Text=""></asp:Label>
</asp:Content>

SoftLinkIndexerTool.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using EPiServer;
using EPiServer.Core;
using EPiServer.DataAbstraction;
using EPiServer.PlugIn;
using EPiServer.ServiceLocation;
using EPiServer.Shell.WebForms;

namespace ChildrenGridView.Plugins
{
    [GuiPlugIn(DisplayName = "Reindex Soft Links", Description = Description, Area = PlugInArea.AdminMenu, Url = "~/Plugins/SoftLinkIndexerTool.aspx")]
    public partial class SoftLinkIndexerTool : WebFormsBase
    {
        public const string Description = "Used to reindex all content";

        private readonly IContentRepository _contentRepository = ServiceLocator.Current.GetInstance<IContentRepository>();
        private readonly ContentSoftLinkRepository _softLinkRepository = ServiceLocator.Current.GetInstance<ContentSoftLinkRepository>();
        private readonly ContentSoftLinkIndexer _contentSoftLinkIndexer = ServiceLocator.Current.GetInstance<ContentSoftLinkIndexer>();

        protected override void OnPreInit(EventArgs e)
        {
            base.OnPreInit(e);
            this.MasterPageFile = UriSupport.ResolveUrlFromUIBySettings("MasterPages/EPiServerUI.master");

            this.SystemMessageContainer.Heading = "Reindex Soft Links";
            this.SystemMessageContainer.Description = Description;
        }

        protected void OnClick(object sender, EventArgs e)
        {
            var stopwatch = Stopwatch.StartNew();
            var numberOfPages = this.UpdateSoftLinks(this._contentRepository.Get<IContent>(ContentReference.RootPage));
            this.lblResult.Text = $"Total time: {stopwatch.Elapsed.ToString("g")}. Number of links found: {numberOfPages}";
        }

        public int UpdateSoftLinks(IContent content)
        {
            var links = _contentSoftLinkIndexer.GetLinks(content);

            var localizable = content as ILocalizable;
            IEnumerable<IContent> children = null;

            if (localizable != null)
            {
                this._softLinkRepository.Save(content.ContentLink.ToReferenceWithoutVersion(), localizable.Language, links);

                foreach (var existingLanguage in localizable.ExistingLanguages)
                {
                    children = this._contentRepository.GetChildren<IContent>(content.ContentLink, existingLanguage);
                }
            }
            else
            {
                this._softLinkRepository.Save(content.ContentLink.ToReferenceWithoutVersion(), null, links);

                children =
                    this._contentRepository.GetChildren<IContent>(content.ContentLink, CultureInfo.InvariantCulture);
            }

            var numberOfLinks = 0;
            foreach (var childContent in children)
            {
                numberOfLinks += UpdateSoftLinks(childContent);
            }
            return links.Count + numberOfLinks;
        }
    }
}

SoftLinkIndexerTool.designer.cs

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated. 
// </auto-generated>
//------------------------------------------------------------------------------

namespace ChildrenGridView.Plugins {
    
    
    public partial class SoftLinkIndexerTool {
        
        /// <summary>
        /// lblResult control.
        /// </summary>
        /// <remarks>
        /// Auto-generated field.
        /// To modify move field declaration from designer file to code-behind file.
        /// </remarks>
        protected global::System.Web.UI.WebControls.Label lblResult;
    }
}

just wondering, what is the purpose of this loop:
foreach (var existingLanguage in localizable.ExistingLanguages)
{
children = this._contentRepository.GetChildren(content.ContentLink, existingLanguage);
}

if you never use the value of children inbetween ?