message: rtabmap.launch: removed voxel size to point_cloud_xyzrgb nodelet
diff: <remap from="rgb/camera_info" to="$(arg camera_info_topic)"/>
  <remap from="cloud" to="voxel_cloud" />
  - <param name="decimation" type="double" value="2"/>
  - <param name="voxel_size" type="double" value="0.02"/>
  + <param name="decimation" type="double" value="4"/>
  + <param name="voxel_size" type="double" value="0.0"/>
  <param name="approx_sync" type="bool" value="$(arg approx_sync)"/>
  </node>
  