Update experiments examples per required usage flows.

Change-Id: Ifba0c463bfc763cc2a9032fc800720c67f304261

Author: laurachevalier4

examples/experiments/create_asset_optimization_experiment.py

@@ -76,7 +76,6 @@ def main(
     experiment.optimize_assets_experiment.optimize_assets_experiment_subtype = (
         client.enums.OptimizeAssetsExperimentSubtypeEnum.COMPARE_ASSETS
     )
-    experiment.status = client.enums.ExperimentStatusEnum.SETUP
 
     # 3. Create two ExperimentArm resources.
     treatment_assets = [

examples/experiments/create_search_adopt_ai_max_experiment.py

@@ -49,7 +49,6 @@ def main(client: GoogleAdsClient, customer_id: str, campaign_id: str) -> None:
     experiment.resource_name = experiment_resource_name
     experiment.name = f"ADOPT_AI_MAX Experiment #{uuid4()}"
     experiment.type_ = client.enums.ExperimentTypeEnum.ADOPT_AI_MAX
-    experiment.status = client.enums.ExperimentStatusEnum.SETUP
 
     # Create the control arm. Both arms in an intra-campaign experiment
     # reference the same base campaign.