Depending on your OS, uninstall the way you would any other client application.
To remove Google authentication completely from your account, navigate to My account > Manage accounts > People > Manage your apps in your Google account and remove it.
Depending on your OS, uninstall the way you would any other client application.
To remove Google authentication completely from your account, navigate to My account > Manage accounts > People > Manage your apps in your Google account and remove it.