message: Remove dashboard transition related config
diff: @@ -416,14 +416,6 @@ SQL_QUERY_MUTATOR = None
  # using flask-compress
  ENABLE_FLASK_COMPRESS = True
  -# Dashboard v1 deprecation configuration
  -DASH_V2_IS_DEFAULT_VIEW_FOR_EDITORS = True
  -CAN_FALLBACK_TO_DASH_V1_EDIT_MODE = True
  -
  -# these are incorporated into messages displayed to users
  -PLANNED_V2_AUTO_CONVERT_DATE = None # e.g. '2018-06-16'
  -V2_FEEDBACK_URL = None # e.g., 'https://goo.gl/forms/...'
  -
  try:
  if CONFIG_PATH_ENV_VAR in os.environ:
  # Explicitly import config module that is not in pythonpath; useful
  