Sync eng/common directory with azure-sdk-tools for PR 2939 (#23619)
Sync eng/common directory with azure-sdk-tools for PR 2939 (#23619)

* Remove extra files

* Update common.ps1

* Update Update-DocsMsToc.ps1

Co-authored-by: sima-zhu <5fef37f6cbdb6842d05e30aec045f2f609cf3db2@microsoft.com>
Co-authored-by: Sima Zhu <d4240cdb7983fdb6beaa6416bf6a44c84cb67504@users.noreply.github.com>
Azure/azure-sdk-for-python,Azure/azure-sdk-for-python,Azure/azure-sdk-for-python,Azure/azure-sdk-for-python