How to remove right click 'Search in Devonagent"

I bought DA but didn’t really find a use to it so I have deleted the app. However I still find I get an annoying ‘Search with Devonagent’ option when I right click on lots of things. How do I get rid of this altogether please? I have tried removing the DA service with Service Scrubber but this message is still there. I would like to remove DA completely from my system.

Delete the DEVONagent plugin in ~/Library/Contextual Menu Items/.