Disable pylint's 'ungrouped-imports' error.

We share the 'google' namespace with third-party pacakages.  PEP 8 wants
'local' imports to be separated fro 'third-party' imports, which is more
important than pylint's attempt to group them by name alone.

Author: tseaver

google/cloud/pubsub/_gax.py

@@ -25,12 +25,10 @@
 from grpc import insecure_channel
 from grpc import StatusCode
 
-# pylint: disable=ungrouped-imports
 from google.cloud._helpers import _to_bytes
 from google.cloud._helpers import _pb_timestamp_to_rfc3339
 from google.cloud.exceptions import Conflict
 from google.cloud.exceptions import NotFound
-# pylint: enable=ungrouped-imports
 
 
 class _PublisherAPI(object):

google/cloud/pubsub/client.py

@@ -25,7 +25,6 @@
 from google.cloud.pubsub.subscription import Subscription
 from google.cloud.pubsub.topic import Topic
 
-# pylint: disable=ungrouped-imports
 try:
     from google.cloud.pubsub._gax import _PublisherAPI as GAXPublisherAPI
     from google.cloud.pubsub._gax import _SubscriberAPI as GAXSubscriberAPI
@@ -39,7 +38,6 @@
     make_gax_subscriber_api = None
 else:
     _HAVE_GAX = True
-# pylint: enable=ungrouped-imports
 
 
 _DISABLE_GAX = os.getenv(DISABLE_GRPC, False)