[PUBDEV-5411] Remove additional progress bar from AutoML in Python (#2166)
[PUBDEV-5411] Remove additional progress bar from AutoML in Python (#2166)

Ticket: https://0xdata.atlassian.net/browse/PUBDEV-5411
This is similar to what's been done in R https://github.com/h2oai/h2o-3/commit/f7dd5e0294b9928588dff64325df5f3124a5b5b5.


h2oai/h2o-dev,spennihana/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,michalkurka/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,h2oai/h2o-dev,michalkurka/h2o-3,h2oai/h2o-3,h2oai/h2o-3,h2oai/h2o-dev,h2oai/h2o-3,h2oai/h2o-3,h2oai/h2o-dev,h2oai/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,spennihana/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,spennihana/h2o-3