Use the /S Flag to uninstall CData Connectors in silent mode.

Assume, for example, that you have the SharePoint ODBC driver installed on your machine in the location which is as follow: C:\temp\new folder. The file we require for uninstallation is uninstall.exe, which can be found inside these folder. The sample command for the same is as below.

Make sure to run the command from an elevated shell to avoid the UAC prompt. 

Command: C:\temp\new folder\Uninstall.exe /S