Remove package not released to pypi (#218)

Author: liyanhui1228

compatibility_lib/compatibility_lib/configs.py

@@ -52,7 +52,6 @@ def _format_url(repo_name, setuppy_path=''):
     'google-cloud-language',
     'google-cloud-logging',
     'google-cloud-monitoring',
-    'google-cloud-ndb',
     'google-cloud-pubsub',
     'google-cloud-redis',
     'google-cloud-resource-manager',