Do not set HOME in the default job environment
Early in the development of HTCondor-CE, we decided to set HOME in the routed job environment to the home directory of the user on the CE (https://github.com/htcondor/htcondor-ce/blob/stable/src/condor_ce_router_defaults#L26). In an upcoming version of HTCondor-CE 4, we're adding an option (USE_CE_HOME_DIR) to disable this behavior https://github.com/htcondor/htcondor-ce/blob/master/config/01-pilot-env.conf#L33-L38.
There doesn't appear to be a good reason for this anymore so in the next major version, we should set USE_CE_HOME_DIR = False by default.
Straightforward change, does what it says it does.