Remove unused GcsIO class attribute

charlesccychen · aaltay · commit c752b7f0034d · 2016-06-13T23:13:28.000-07:00
----Release Notes---- [] ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=124742068
diff --git a/google/cloud/dataflow/io/gcsio.py b/google/cloud/dataflow/io/gcsio.py
@@ -57,7 +57,6 @@ def parse_gcs_path(gcs_path):
 
 class GcsIO(object):
   """Google Cloud Storage I/O client."""
-  _instance = None
 
   def __new__(cls, storage_client=None):
     if storage_client:
