appveyor: Cleanup

* Remove unneeded event log listing

* Remove GitHubPullRequest. Considering it is a small project. We don't yet
  need Appveyor to add a comment on the PR.

* Remove "shallow_clone: false", it is already set to false by default.
  Doing a regular clone is needed to ensure sdist works as expected.

Author: jcfr

appveyor.yml

@@ -57,23 +57,9 @@ after_test:
 on_finish:
   - ps: ../addons/appveyor/enable-worker-remote-access.ps1 -check_for_block
 
-on_failure:
-  - ps: "Get-EventLog AppVeyor -newest 10 | Format-List"
-
 artifacts:
   # Archive the generated packages in the ci.appveyor.com build report.
   - path: dist\*
 
 matrix:
   fast_finish: false
-
-notifications:
-  - provider: GitHubPullRequest
-    auth_token:
-      secure: iXYaAwXJcHdnRGTeb1Gk1PembhlZleCGDK2oJgsiFvA=
-    template: >-
-      {{#passed}}:white_check_mark:{{/passed}}{{#failed}}:x:{{/failed}}
-      [Build {{&projectName}} {{buildVersion}} {{status}}]({{buildUrl}})
-      (commit {{commitUrl}} by @{{&commitAuthorUsername}})
-
-shallow_clone: false