[Python] Take a survey to check whether generation of pipeline for all data-plane packages work

Context:

python will [clean output folder](https://github.com/Azure/azure-sdk-for-python/blob/b8b89a30cc684ecf072ea163ac220d714b9bf52f/eng/tools/azure-sdk-tools/packaging_tools/generate_utils.py#L61-L65) before generation in pipeline to make sure :

(1) there is no outdated files

(2) avoid potential failure caused by customization code

(2) may takes higher ratio since Python is required check and failure will block PR merge in rest repo.

Before close the clean logic, I think we had better make a survey whether SDK generation for all existing data-plane package could work.