Uninstalling a Formstack Sync Connector is a very simple process, which is outlined below:
1. Access your Formstack Sync portal and navigate to the Connectors screen.
2. On the Connectors screen, select the "Installed" dropdown menu to generate a list of installed instances for the Connector you'd like and select the instance you'd like to uninstall
3. On the Connector Settings prompt that appears, select the "More" menu to find the "Uninstall" option, which will remove that instance of your Connector when selected.
It is important to note that if you uninstall a Connector, any Mappings will need to be updated and Formstack Sync will need to be reset as detailed here.