Remove workaround for libvtkproj.

[zmichaels11]

Recent PCL dependency issue has been resolved in the latest Kinetic release. See:

• https://github.com/ros/rosdistro/issues/27538 for issue
• https://discourse.ros.org/t/new-packages-for-kinetic-kame-2020-12-07/17786/1 for announcement.

Signed-off-by: Zachary Michaels zacmicha@amazon.com