Delete VoiceOver on my Mac

You can turn it off in System Preferences>Accessibility>Voice Over (for other than Monterey the exact location in Accessibility may differ) . Depending upon the macOS version you may be able remove it but that may mess things up. Why not just turn it off?

Recent versions of MacOS install the system onto a separate locked, checksummed Volume. If you manage to break it open and delete parts of MacOS, the whole thing will not run, and you will be facing a re-install. Don't waste your time and energy doing that.