[SW-1818][FollowUp] Switch PySparkling & RSparkling in internal backend to client-less approach by default (#1973)
[SW-1818][FollowUp] Switch PySparkling & RSparkling in internal backend to client-less approach by default (#1973)

h2oai/sparkling-water,h2oai/sparkling-water,h2oai/sparkling-water,h2oai/sparkling-water