Disable unused and test purpose components or remove them from the project. Disabling of these components is sufficient because the useless code is removed but the component setting remains in the project. If these components are required for later testing then add a new configuration to the project and disable these useless component only in the new configuration. The previous configuration will be used when the application is tested again. Moreover if it is required to use the same component with different setting in several configurations, its possible to add one component for each configuration with same name and different setting.