Remove a useless insert when recomputing autoclusters. #6833
Remove a useless insert when recomputing autoclusters. #6833

The return value from find_job_id_set() tells us that the job is already
in the old autocluster's set. There's no need to insert it.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor