tests/cond_order: clean python test script
tests/cond_order: clean python test script

The testrunner module path is already added the PYTHONPATH, so can be imported like a regular module

jasonatran/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,miri64/RIOT,OTAkeys/RIOT,ant9000/RIOT,ant9000/RIOT,miri64/RIOT,authmillenon/RIOT,ant9000/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,kYc0o/RIOT,jasonatran/RIOT,miri64/RIOT,jasonatran/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,ant9000/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,kYc0o/RIOT,miri64/RIOT,ant9000/RIOT,authmillenon/RIOT,jasonatran/RIOT,kYc0o/RIOT,OTAkeys/RIOT,kaspar030/RIOT,kaspar030/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,authmillenon/RIOT,authmillenon/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,miri64/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,kaspar030/RIOT