Fix pylint

Author: farleyb-amazon

test/unit/test_aws_encryption_sdk.py

@@ -106,5 +106,5 @@ def test_kms_master_key_provider_deprecation_warning(self):
         warnings.simplefilter("error")
 
         with pytest.raises(DeprecationWarning) as excinfo:
-            provider = aws_encryption_sdk.KMSMasterKeyProvider()
+            aws_encryption_sdk.KMSMasterKeyProvider()
         excinfo.match("KMSMasterKeyProvider is deprecated")