Apply VS' FormatDocument and RemoveAndSort to all *.cs files

- #EngineeringDay
- this repo was relatively clean

src/Microsoft.AspNet.Routing/DefaultInlineConstraintResolver.cs

@@ -6,7 +6,6 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Reflection;
-using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.OptionsModel;
 
 namespace Microsoft.AspNet.Routing

src/Microsoft.AspNet.Routing/RoutingServices.cs

@@ -2,12 +2,8 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Collections.Generic;
-using System.Threading.Tasks;
-using Microsoft.AspNet.Http;
-using Microsoft.AspNet.Routing;
 using Microsoft.Framework.ConfigurationModel;
 using Microsoft.Framework.DependencyInjection;
-using Microsoft.Framework.DependencyInjection.NestedProviders;
 
 namespace Microsoft.AspNet.Routing
 {

test/Microsoft.AspNet.Routing.Tests/ConstraintMatcherTest.cs

@@ -3,8 +3,8 @@
 
 using System.Collections.Generic;
 using Microsoft.AspNet.Http;
-using Microsoft.AspNet.Routing.Logging;
 #if ASPNET50
+using Microsoft.AspNet.Routing.Logging;
 using Moq;
 #endif
 using Xunit;