Do not set the _retry attribute in is_job_done.
Do not set the _retry attribute in is_job_done.

Checking to see whether the job is done should not change anything about the job itself. The _retry attribute should be set before the query starts.

Change-Id: If8b83698f80ca6b84cdb3c1a63b4b063f85b0cfc

verilylifesciences/analysis-py-utils,verilylifesciences/analysis-py-utils