Auto merge of #8011 - ehuss:pr-ci, r=alexcrichton

Run CI on all PRs.

I think we want PRs to be tested on all branches (such as beta branches). This is the default for Azure, so there's no need to specify the PR trigger.

Author: bors

azure-pipelines.yml

@@ -4,8 +4,6 @@ trigger:
     - '*'
     exclude:
     - master
-pr:
-- master
 
 jobs:
 - job: Linux