To uninstall trafficserver-dev just follow these instructions.
Are you having problems? You can always add trafficserver-devagain by following the instructions at this link.
This will remove just the trafficserver-dev package itself.
This will remove the trafficserver-dev package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for trafficserver-dev then this will work.