Minor clean-ups

Author: cotti

src/Elastic.Markdown/HtmlWriter.cs

@@ -5,7 +5,6 @@
 using System.IO.Abstractions;
 using Elastic.Documentation;
 using Elastic.Documentation.Configuration.LegacyUrlMappings;
-using Elastic.Documentation.Configuration.Products;
 using Elastic.Documentation.Configuration.Versions;
 using Elastic.Documentation.Site.FileProviders;
 using Elastic.Documentation.Site.Navigation;

src/Elastic.Markdown/Myst/FrontMatter/Products.cs

@@ -4,7 +4,6 @@
 
 using Elastic.Documentation.Configuration.Products;
 using Elastic.Documentation.Configuration.Suggestions;
-using Elastic.Documentation.Configuration.Versions;
 using YamlDotNet.Core;
 using YamlDotNet.Core.Events;
 using YamlDotNet.Serialization;