Uninstall module completely
You can easily uninstall module using composer and OXID eShop Composer Plugin will do the following steps before composer uninstalling module:
Deactivate the module if it is already active
Remove module configurations from shop configuration file and remove module classes from module chain
Remove module source files
then composer will remove module from autoloader and rebuild the autoloader.
Uninstall module configuration
In order to remove module configurations from shop configuration, following command has been provided.
vendor/bin/oe-console oe:module:uninstall-configuration <module-id>
This command is available from version 6.2.3.