Remove macros necessary for EL6
Remove macros necessary for EL6

matyasselmeci/htcondor-ce,brianhlin/htcondor-ce,brianhlin/htcondor-ce,matyasselmeci/htcondor-ce,opensciencegrid/htcondor-ce,opensciencegrid/htcondor-ce,opensciencegrid/htcondor-ce,matyasselmeci/htcondor-ce,brianhlin/htcondor-ce