message: removed redundant parameter loading in moveit launch
diff: <arg name="controller" default="position" />
  <group ns="$(arg arm_id)">
  - <rosparam command="load" file="$(find franka_hw)/config/default_controllers.yaml" />
  <node name="controller_spawner" pkg="controller_manager" type="spawner" respawn="false" output="screen" args="$(arg controller)_joint_trajectory_controller --shutdown-timeout 2"/>
  <include file="$(find franka_moveit_config)/launch/move_group.launch" />
  </group>
  