1. Run the tool from the Add-Ins Tab.
2. Check the box under the purge column.
3. Click the OK option in the dialog box.
4. Then all the CAD drawings will be deleted from the model.

The installer that ran when you downloaded this plug-in from Autodesk App store has already installed the plug-in. You may need to restart the Autodesk product to activate the plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer by downloading it again from Autodesk App store, and select the 'Uninstall' button, or you can uninstall it from 'Control Panel\Programs\Programs and Features' (Windows 7/8.1/10/11), just as you would uninstall any other application from your system.