[jsk_2013_04_pr2_610] clean up rosinstall because everything is released #259

Job	Run time
ros (indigo, jskrobotics/ros-ubuntu:14.04-pcl, true)	14m 36s
ros (indigo, jskrobotics/ros-ubuntu:14.04-pcl, ls -al; ls -al jsk_demos/; TEST_ROBOT=pr2 ./jsk_de...	14m 21s
ros (indigo, jskrobotics/ros-ubuntu:14.04-pcl, TEST_ROBOT=fetch ./jsk_demos/.travis.before_script...	15m 0s
ros (kinetic, jskrobotics/ros-ubuntu:16.04-pcl)	9m 9s
ros (melodic, jskrobotics/ros-ubuntu:18.04-pcl)	9m 49s
ros (melodic, jskrobotics/ros-ubuntu:18.04-pcl, TEST_ROBOT=fetch ./jsk_demos/.travis.before_scrip...	10m 59s
ros (noetic, jskrobotics/ros-ubuntu:20.04-pcl, python3-rospkg python3-rospkg-modules, false)	11m 7s
	1h 25m 1s

Provide feedback