fix: fix extra insert for count on dataset creation (apache#24625)

(cherry picked from commit e6e8276)

superset/datasets/commands/create.py

@@ -22,7 +22,6 @@
 from sqlalchemy.exc import SQLAlchemyError
 
 from superset.commands.base import BaseCommand, CreateMixin
-from superset.connectors.sqla.models import SqlMetric
 from superset.daos.dataset import DatasetDAO
 from superset.daos.exceptions import DAOCreateFailedError
 from superset.datasets.commands.exceptions import (
@@ -47,9 +46,7 @@ def run(self) -> Model:
  # Creates SqlaTable (Dataset)
  dataset = DatasetDAO.create(self._properties, commit=False)
 
- # Updates columns and metrics from the dataset
- dataset.metrics = [SqlMetric(metric_name="COUNT(*)", expression="COUNT(*)")]
-
+ # Updates columns and metrics from the datase
  dataset.fetch_metadata(commit=False)
  db.session.commit()
  except (SQLAlchemyError, DAOCreateFailedError) as ex:

superset/utils/pandas_postprocessing/prophet.py

@@ -51,7 +51,7 @@ def _prophet_fit_and_predict( # pylint: disable=too-many-arguments
  Fit a prophet model and return a DataFrame with predicted results.
  """
  try:
- # pylint: disable=import-error,import-outside-toplevel
+ # pylint: disable=import-outside-toplevel
  from prophet import Prophet
 
  prophet_logger = logging.getLogger("prophet.plot")