IC picks up the Salesforce CLI from the system execution path (i.e., $PATH/`%PATH%), so you’d need to remove it from that. You can do that by uninstalling the Salesforce CLI or by just removing it explicitly from the system execution path.
However, it sounds like perhaps the CLI may be installed incorrectly. If/when you want to try the CLI again, I’d recommend completely uninstalling the Salesforce CLI and installing it again, ideally using the simplest installation method, typically the packaged installer for your OS or npm.
Regards,
Scott Wells