Fixed ordering of using directives

Author: Sergio0694

Microsoft.Toolkit.Uwp/Deferred/EventDeferral.cs

@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Collections.Generic;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 

Microsoft.Toolkit.Uwp/Extensions/StringExtensions.cs

@@ -4,7 +4,6 @@
 
 using Windows.ApplicationModel.Resources;
 using Windows.UI;
-using Windows.UI.WindowManagement;
 using Windows.UI.Xaml;
 
 namespace Microsoft.Toolkit.Uwp.Extensions

Microsoft.Toolkit.Uwp/Helpers/DeepLinkParser/CollectionFormingDeepLinkParser.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using Windows.ApplicationModel.Activation;
 

Microsoft.Toolkit.Uwp/Helpers/PrintHelper/PrintHelper.cs

@@ -6,12 +6,12 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Microsoft.Toolkit.Uwp.Extensions;
 using Windows.Graphics.Printing;
 using Windows.System;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Printing;
-using Microsoft.Toolkit.Uwp.Extensions;
 
 namespace Microsoft.Toolkit.Uwp.Helpers
 {

Microsoft.Toolkit.Uwp/Helpers/PrintHelper/PrintHelperStateBag.cs

@@ -2,9 +2,9 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using Microsoft.Toolkit.Uwp.Extensions;
 using Windows.System;
 using Windows.UI.Xaml;
-using Microsoft.Toolkit.Uwp.Extensions;
 
 namespace Microsoft.Toolkit.Uwp.Helpers
 {

Microsoft.Toolkit.Uwp/Helpers/RemoteDeviceHelper/RemoteDeviceHelper.cs

@@ -6,9 +6,9 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
+using Microsoft.Toolkit.Uwp.Extensions;
 using Windows.System;
 using Windows.System.RemoteSystems;
-using Microsoft.Toolkit.Uwp.Extensions;
 
 namespace Microsoft.Toolkit.Uwp.Helpers
 {

Microsoft.Toolkit.Uwp/Structures/OSVersion.cs

@@ -2,8 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Windows.System.Profile;
-
 namespace Microsoft.Toolkit.Uwp.Helpers
 {
     /// <summary>