Remove unused imports

Author: theletterf

tests/Elastic.Markdown.Tests/TextFormat/IrregularWhitespaceTest.cs

@@ -3,14 +3,10 @@
 // See the LICENSE file in the project root for more information
 
 using System.Linq;
-
 using Elastic.Documentation.Diagnostics;
 using Elastic.Markdown.Tests.Inline;
 using FluentAssertions;
 
-using Xunit;
-using Xunit.Abstractions;
-
 namespace Elastic.Markdown.Tests.TextFormat;
 
 public class IrregularWhitespaceTest(ITestOutputHelper output) : InlineTest(output,