CI: remove windows python pre-release which is not running

tacaswell · tacaswell · commit 6dde94539f1c · 2021-01-28T19:31:27.000-05:00
It never worked quite right due to issues installing dependencies
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -23,9 +23,6 @@ strategy:
     Windows_py38:
       vmImage: 'windows-latest'
       python.version: '3.8'
-    Windows_pyPre:
-      vmImage: 'vs2017-win2016'
-      python.version: 'Pre'
   maxParallel: 4
 
 pool:
