Fix build

Author: JamesNK

src/Http/Http.Results/src/HttpResultsHelper.cs

@@ -6,7 +6,6 @@
 using System.Text.Json;
 using Microsoft.AspNetCore.Internal;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Routing;
 using Microsoft.Extensions.Logging;
 using Microsoft.Net.Http.Headers;
 

src/Http/Http.Results/src/Results.cs

@@ -11,7 +11,6 @@
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Internal;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Routing;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNetCore.Http;

src/Http/Http.Results/src/TypedResults.cs

@@ -11,7 +11,6 @@
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Internal;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Routing;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNetCore.Http;