[integ-tests] Remove using devsettings to disable in_place_update_on_fleet in OSU test

This commit prepares OSU test for validating the long term fix

Author: hanwen-cluster

tests/integration-tests/tests/performance_tests/test_osu.py

@@ -34,12 +34,10 @@
 
 
 @pytest.mark.usefixtures("serial_execution_by_instance")
-@pytest.mark.parametrize("in_place_update_on_fleet_enabled", ["true", "false"])
 def test_osu(
     os,
     region,
     scheduler,
-    in_place_update_on_fleet_enabled,
     instance,
     pcluster_config_reader,
     clusters_factory,
@@ -65,9 +63,6 @@ def test_osu(
     capacity_reservation_id = None
     placement_group_enabled = True
 
-    chef_attributes_dict = {"cluster": {"in_place_update_on_fleet_enabled": in_place_update_on_fleet_enabled}}
-    extra_chef_attributes = json.dumps(chef_attributes_dict)
-
     if instance in ["p6-b200.48xlarge", "p5en.48xlarge"]:
         max_queue_size = 2
         capacity_type = "CAPACITY_BLOCK"
@@ -89,7 +84,6 @@ def test_osu(
         capacity_type=capacity_type,
         capacity_reservation_id=capacity_reservation_id,
         placement_group_enabled=placement_group_enabled,
-        extra_chef_attributes=extra_chef_attributes,
     )
     cluster = clusters_factory(cluster_config)
     remote_command_executor = RemoteCommandExecutor(cluster)

tests/integration-tests/tests/performance_tests/test_osu/test_osu/pcluster.config.yaml

@@ -40,6 +40,3 @@ SharedStorage:
   - MountDir: /shared
     Name: name1
     StorageType: Ebs
-DevSettings:
-  Cookbook:
-    ExtraChefAttributes: '{{ extra_chef_attributes }}'