Update build script

Author: scott-xu

appveyor.yml

@@ -34,8 +34,7 @@ build:
   verbosity: minimal
 
 test_script:
-  - cd src\Ninject.Extensions.Factory.Test
-  - OpenCover.Console.exe -oldstyle -returntargetcode -register:user -target:"C:\Program Files\dotnet\dotnet.exe" -targetargs:"test --configuration Release --no-build" -filter:"+[Ninject.Extensions.Factory]*" -excludebyattribute:*.ExcludeFromCodeCoverage*;*.Obsolete* -output:".\Ninject.Extensions.Factory_coverage.xml"
+  - OpenCover.Console.exe -oldstyle -returntargetcode -register:user -target:"C:\Program Files\dotnet\dotnet.exe" -targetargs:"test --configuration Release --no-build src\Ninject.Extensions.Factory.Test" -filter:"+[Ninject.Extensions.Factory]*" -excludebyattribute:*.ExcludeFromCodeCoverage*;*.Obsolete* -output:".\Ninject.Extensions.Factory_coverage.xml"
   - codecov -f "Ninject.Extensions.Factory_coverage.xml"
 
 artifacts:

src/Ninject.Extensions.Factory.Test/Ninject.Extensions.Factory.Test.csproj

@@ -11,9 +11,6 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0" />
     <PackageReference Include="Moq" Version="4.7.99" />
     <PackageReference Include="xunit" Version="2.3.0" />
-  </ItemGroup>
-
-  <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.0" />
   </ItemGroup>