PUBDEV-5625 Remove frame metadata calculation from AutoML (#2493)
PUBDEV-5625 Remove frame metadata calculation from AutoML (#2493)

* Remove metadata frame collection as this information is not utilized by AutoML

* Ensure parentJob is not null

* Revert previous commit

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