tests(translate): normalize VPCSC configuration in systests (#9619)
tests(translate): normalize VPCSC configuration in systests (#9619)



tswast/google-cloud-python,tseaver/google-cloud-python,googleapis/google-cloud-python,tswast/google-cloud-python,tseaver/google-cloud-python,GoogleCloudPlatform/gcloud-python,tseaver/google-cloud-python,tswast/google-cloud-python,googleapis/google-cloud-python,GoogleCloudPlatform/gcloud-python