Fix spelling in error message

Author: hth313

tests/FSharp.Data.GraphQL.Tests/FSharp.Data.GraphQL.Tests.fsproj

@@ -102,10 +102,4 @@
     <ProjectReference Include="..\..\src\FSharp.Data.GraphQL.Client.DesignTime\FSharp.Data.GraphQL.Client.DesignTime.fsproj" />
     <ProjectReference Include="..\..\src\FSharp.Data.GraphQL.Server.Middleware\FSharp.Data.GraphQL.Server.Middleware.fsproj" />
   </ItemGroup>
-</Project>
-  <ItemGroup Condition="$(OS) == Unix">
-    <Content Include="xunit.runner.json" CopyToOutputDirectory="PreserveNewest" />
-  </ItemGroup>
-  <Import Project="..\..\netfx.props" />
-  <Import Project="..\..\.paket\Paket.Restore.targets" />
 </Project>