Revert "fix loading parameter behavior from yaml file. (#656)" (#660)

This reverts commit eed4553.

Signed-off-by: Aditya Pande <[email protected]>

Author: adityapande-1995

demo_nodes_py/demo_nodes_py/parameters/async_param_client.py

@@ -73,8 +73,7 @@ def main(args=None):
     rclpy.spin_until_future_complete(node, future)
     load_parameter_results = future.result()
     if load_parameter_results is not None:
-        param_file_dict = parameter_dict_from_yaml_file(
-            param_file_path, False, target_nodes=['parameter_blackboard'])
+        param_file_dict = parameter_dict_from_yaml_file(param_file_path)
         for i, v in enumerate(param_file_dict.keys()):
             node.get_logger().info(f'    {v}:')
             node.get_logger().info(f'        successful: '

demo_nodes_py/demo_nodes_py/parameters/params.yaml

@@ -1,4 +1,4 @@
-/parameter_blackboard:
+/param_test_target:
   ros__parameters:
     other_int_parameter: 0
     int_parameter: 12