Docker working without Configure ConfigureAppConfiguration (#443)

* Docker working without Configure ConfigureAppConfiguration.

* Sort modifiers

src/Web/Program.cs

@@ -43,14 +43,7 @@ namespace Microsoft.eShopWeb.Web
 
         public static IHostBuilder CreateHostBuilder(string[] args) =>
             Host.CreateDefaultBuilder(args)
-            .ConfigureAppConfiguration((builderContext, config) =>
-            {
-                var env = builderContext.HostingEnvironment;
-                config
-                    .AddJsonFile("appsettings.json")
-                    .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: true);
-            })
-            .ConfigureWebHostDefaults(webBuilder =>
+                .ConfigureWebHostDefaults(webBuilder =>
                 {
                     webBuilder.UseStartup<Startup>();
                 });