Revert "Install python36-qt5 from EPEL testing" (#343)
Revert "Install python36-qt5 from EPEL testing" (#343)

The update for this bug is now in the stable repository.

This reverts commit 51c0584d4161cdc1a1b29b02e4f9383ecf5134f4.
ros2/ci,ros2/ci,ros2/ci