app/Services/Auth/TwoFactor/Authy.php
public function delete(TwoFactorAuthenticatable $user)
    {
        $key = env('AUTHY_KEY');

        $options = $user->getTwoFactorAuthProviderOptions();

        (new HttpClient)->post(
            'https://api.authy.com/protected/json/users/delete/'.$options['id'].'?api_key='.$key
        );

        $user->setTwoFactorAuthProviderOptions([]);
    }
public function delete(TwoFactorAuthenticatable $user)
    {
        $key = env('AUTHY_KEY');

        $options = $user->getTwoFactorAuthProviderOptions();

        (new HttpClient)->post(
            'https://api.authy.com/protected/json/users/delete/'.$options['id'].'?api_key='.$key
        );

        $user->setTwoFactorAuthProviderOptions([]);
    }
Delete the given user from the provider.

@param  \Laravel\Spark\Contracts\Auth\TwoFactor\Authenticatable  $user
@return bool