Stop uploading test results to AppVeyor.

Seems like we get a HTTP 500 now...

.appveyor.yml

@@ -15,11 +15,3 @@ install:
 
 test_script:
   - C:\Python34\Scripts\tox -e %TESTENV% -- -p "no:sugar" -v --junitxml=junit.xml
-
-after_test:
-  - ps: |
-      if ($env:TESTENV -ne "pylint") {
-          $url = "https://ci.appveyor.com/api/testresults/junit/$($env:APPVEYOR_JOB_ID)"
-          $file = '.\junit.xml'
-          (New-Object 'System.Net.WebClient').UploadFile($url, (Resolve-Path $file))
-      }