Fixing test configuration

Author: ENikS

appveyor.yml

@@ -17,15 +17,8 @@ build:
   parallel: true
   verbosity: minimal
 
-after_build:
-- choco install opencover.portable
-- choco install codecov
-  
 test_script:
-- OpenCover.Console.exe -register:user -target:"C:\Program Files\dotnet\dotnet.exe" -targetargs:"test"
-
-after_test:
-- codecov -f "results.xml" 
+- cmd: dotnet test --framework net47 --verbosity q
 
 artifacts:
 - path: '**\Unity.*.nupkg'