I've tried this several times now and it seems like it's trying to install the device services server services while removing the AWCM. I don't get the option to Add/Remove AirWatch features when starting the installer, I get a license agreement, a multi-server configuration setup with options to export/import installer configuration, and then the airwatch features installs. I guess I can go through and install all those services while removing AWCM and then run it again and remove all the device server services and install the AWCM.