Don't use launch_testing features that will be deprecated

[pbaughman]

Removing some of the 'magic' features from launch_testing that we want to deprecate.

For background, see ros2/launch#346

Signed-off-by: Pete Baughman pete.baughman@apex.ai

[sloretz]

CI (testing just ros1_bridge on linux)
(java traceback)

[sloretz]

CI looks good. Unstable due to

--- stderr: ros1_bridge
12:47:04 CMake Warning at /home/jenkins-agent/workspace/ci_packaging_linux/ws/install/share/actionlib_msgs/cmake/actionlib_msgsConfig.cmake:29 (message):
12:47:04   Package 'actionlib_msgs' is deprecated (This package will be removed in a
12:47:04   future ROS distro, once the ROS 1 bridge supports actions.)
12:47:04 Call Stack (most recent call first):
12:47:04   CMakeLists.txt:94 (find_package)
12:47:04 
12:47:04 
12:47:04 ---
12:47:04 Finished <<< ros1_bridge [22min 20s]
12:47:04 
12:47:04 Summary: 1 package finished [22min 22s]
12:47:04   1 package had stderr output: ros1_bridge
12:47:04 
12:47:04 # END SUBSECTION

[mjcarroll]

LGTM, actionlib_msgs deprecation warning is expected (and happens on nightly)