disable 2 step verification apple
Short answer:
You can't.
Long answer:
"Can I turn off two-factor authentication after I’ve turned it on?"
If you already use two-factor authentication,
you can no longer turn it off. Certain features
in the latest versions of iOS and macOS require
this extra level of security, which is designed
to protect your information. If you recently
updated your account, you can unenroll within
two weeks of enrollment. Just open your
enrollment confirmation email and click the
link to return to your previous security settings.
Keep in mind, this makes your account less secure
and means that you can't use features that require
higher security. (Source: Apple)