/DeleteCfg [-Extension <extension name>] [-AllExtensions] 

Deletes configuration extensions. When the command is run without parameters, it returns an error. The following parameters are available:

Extension <extension name>. Delete the extension with the specified name. If the extension is successfully processed, return 0. Otherwise (if the extension with the specified name is not available or any errors occur) return 1.
AllExtensions. Delete all configuration extensions.