Revert "Execute typeshed serializer unit tests during CI (#1076)"

This reverts commit 783524b.

Author: andreaguarino

.cirrus.yml

@@ -82,8 +82,6 @@ build_task:
   build_script:
     - git submodule update --init
     - source cirrus-env BUILD
-    - mvn -f python-frontend/pom.xml protobuf:compile-python@generate-protobuf-python-sources
-    - tox -c python-frontend/typeshed_serializer/tox.ini -e test
     - regular_mvn_build_deploy_analyze
     - ./check-license-compliance.sh
   cleanup_before_cache_script: cleanup_maven_repository

python-frontend/typeshed_serializer/tox.ini

@@ -2,7 +2,7 @@
 envlist = py39, serialize
 skipsdist = True
 
-[testenv:test]
+[testenv]
 deps = -rrequirements.txt
 commands = python -m pytest --cov=serializer --cov-report xml:cov.xml --ignore=resources