If you're building an add-on that does not need a register_url or unregister_url; you can suppress them by including the following red line in your jiveclientconfiguration.json file.
"development" : true,
It'll suppress the register data elements from being created in your meta.json file (which is zipped up as part of the extension.zip file). I used to remove them manually and rezip the file until I just discovered this. I'd packaged some standalone JA Cartridges into addons which don't have any services and this is an ideal solution.