Update win32-CI-nightly.yml for Azure Pipelines

Author: Wenbing Li

.azure-pipelines/win32-CI-nightly.yml

@@ -61,12 +61,6 @@ jobs:
       pytest tests --doctest-modules --junitxml=junit/test-results.xml
     displayName: 'pytest - onnxmltools'
 
-  - script: |
-      call activate py$(python.version)
-      set PYTHONPATH=libsvm\python;%PYTHONPATH%
-      pytest onnxutils/tests --doctest-modules --junitxml=junit/test-results-onnxutils.xml
-    displayName: 'pytest - onnxutils'
-
   - task: PublishTestResults@2
     inputs:
       testResultsFiles: '**/test-results.xml'