Pre-commit fixes

Author: eholum-nasa

clr_pick_and_place_demo/launch/demo_planning_viz.launch.py

@@ -18,8 +18,7 @@
 # under the License.
 
 from launch import LaunchDescription
-from launch.actions import DeclareLaunchArgument, IncludeLaunchDescription
-from launch.launch_description_sources import PythonLaunchDescriptionSource
+from launch.actions import DeclareLaunchArgument
 from launch.substitutions import LaunchConfiguration
 from launch_ros.actions import Node
 from ament_index_python.packages import get_package_share_directory