Get rid of ENABLED_VARIANT_CALLERS override in test_settings.py since these (freebayes, lumpy) have been the global_settings.py values for a while.
Get rid of ENABLED_VARIANT_CALLERS override in test_settings.py since these (freebayes, lumpy) have been the global_settings.py values for a while.

woodymit/millstone,churchlab/millstone,woodymit/millstone,woodymit/millstone,churchlab/millstone,churchlab/millstone,churchlab/millstone,woodymit/millstone