Add setup-test-environment.yaml to another build phase

Author: jonathanpeppers

build-tools/automation/azure-pipelines.yaml

@@ -1291,20 +1291,11 @@ stages:
     workspace:
       clean: all
     steps:
-    - checkout: self
-      submodules: recursive
+    - template: yaml-templates/setup-test-environment.yaml
 
     - checkout: release_scripts
       clean: true
 
-    - template: yaml-templates/use-dot-net.yaml
-      parameters:
-        remove_dotnet: true
-
-    - template: yaml-templates/use-dot-net.yaml
-      parameters:
-        version: $(DotNetCoreVersion)
-
     - task: DownloadPipelineArtifact@2
       inputs:
         ${{ if eq(variables['MicroBuildSignType'], 'Real') }}: