Fixed issue with generated Nuget

- Fixes #60

Author: mitchelsellers

src/AspNetCore.Utilities/AspNetCore.Utilities.csproj

@@ -38,7 +38,6 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>