Cleanup

Author: tmat

src/BuiltInTools/dotnet-watch/Program.cs

@@ -3,7 +3,6 @@
 
 using System.Runtime.Loader;
 using Microsoft.Build.Locator;
-using NuGet.Versioning;
 
 namespace Microsoft.DotNet.Watch
 {

test/dotnet-watch.Tests/HotReload/RuntimeProcessLauncherTests.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Collections.Immutable;
-using System.ComponentModel.DataAnnotations;
 using System.Runtime.CompilerServices;
 
 namespace Microsoft.DotNet.Watch.UnitTests;