revert uv index update till CFS migration (#44450)

Author: scbedd

eng/pipelines/templates/steps/auth-dev-feed.yml

@@ -25,9 +25,10 @@ steps:
       artifactFeeds: $(DevFeedName)
       onlyAddExtraIndex: false
 
-  - pwsh: |
-      if ($env:PIP_INDEX_URL) {
-        Write-Host "PIP Index URL detected: $env:PIP_INDEX_URL"
-        Write-Host "##vso[task.setvariable variable=UV_DEFAULT_INDEX]$($env:PIP_INDEX_URL)"
-      }
-    displayName: 'Mirror PIP Index URL to UV Index URL'
+  # disabled until completion of python part of azure/azure-sdk-tools#9101
+  # - pwsh: |
+  #     if ($env:PIP_INDEX_URL) {
+  #       Write-Host "PIP Index URL detected: $env:PIP_INDEX_URL"
+  #       Write-Host "##vso[task.setvariable variable=UV_DEFAULT_INDEX]$($env:PIP_INDEX_URL)"
+  #     }
+  #   displayName: 'Mirror PIP Index URL to UV Index URL'