Delete tax identification at registration page

[bedum]

how do i delete the tax identification option on the registration page?
Identication number : DNI / NIF / NIE

i have followed this page, but the Tax is still showing. Link

i have changed my default country to other and i have change that country to “need tax identificaiton number to NO.

i am using 1.3.7

i have even disabled all the countries in Back Office >> Shipping >> Countries except the default country. I have set NO to the Tax identification for that default country. But why is the Tax identification still showing at the registration form?

Please advice thanks