Fix summary doc, the client name is an argument. (#66703)

src/libraries/Microsoft.Extensions.Http/src/DependencyInjection/HttpClientFactoryServiceCollectionExtensions.cs

@@ -243,8 +243,7 @@ public static IHttpClientBuilder AddHttpClient(this IServiceCollection services!
 
         /// <summary>
         /// Adds the <see cref="IHttpClientFactory"/> and related services to the <see cref="IServiceCollection"/> and configures
-        /// a binding between the <typeparamref name="TClient" /> type and a named <see cref="HttpClient"/>. The client name will
-        /// be set to the type name of <typeparamref name="TClient"/>.
+        /// a binding between the <typeparamref name="TClient" /> type and a named <see cref="HttpClient"/>.
         /// </summary>
         /// <typeparam name="TClient">
         /// The type of the typed client. The type specified will be registered in the service collection as