Hi @doveman, thanks for posting!
Before uninstalling the app and deleting the Dropbox folder, I'd recommend unlinking the device from your security page here. You just need to click the trash can to the right of the device.
Once your account is unlinked from the app, you can proceed with uninstalling the app and deleting the Dropbox folder on the computer without it affecting the files within your account.
Hope this helps, let me know if you have any questions!