Add pragma warning suppression for WebHost.cs and remove from WebHostBuilder.cs

Co-authored-by: BrennanConroy <[email protected]>

Author: Copilot

src/DefaultBuilder/src/WebHost.cs

@@ -154,7 +154,9 @@ public static IWebHostBuilder CreateDefaultBuilder() =>
     /// <returns>The initialized <see cref="IWebHostBuilder"/>.</returns>
     public static IWebHostBuilder CreateDefaultBuilder(string[] args)
     {
+#pragma warning disable CS0618 // Type or member is obsolete
         var builder = new WebHostBuilder();
+#pragma warning restore CS0618 // Type or member is obsolete
 
         if (string.IsNullOrEmpty(builder.GetSetting(WebHostDefaults.ContentRootKey)))
         {

src/Hosting/Hosting/src/WebHostBuilder.cs

@@ -20,9 +20,7 @@ namespace Microsoft.AspNetCore.Hosting;
 /// <summary>
 /// A builder for <see cref="IWebHost"/>
 /// </summary>
-#pragma warning disable CS0618 // Type or member is obsolete
 [Obsolete("TODO: Add Obsolete message")]
-#pragma warning restore CS0618 // Type or member is obsolete
 public class WebHostBuilder : IWebHostBuilder
 {
     private readonly HostingEnvironment _hostingEnvironment;