how to get rid of fullname composite field?

First of all, I'm in Mexico and in here fullname composed of 3 different fields, Firstname, Lastname and mother's lastname.

Saying that, I need to enter those three fields and avoid that noisy dialog of fullname composite field.

I have tried these options and nothing has worked out:

- Configuring the visibility from the field properties on the form

- Using setVisible(false) sentence from JS

- Hidding the section of the field in the form

- Hidding the field using a business rule

Has someone faced this issue before?, does somebody know how to solve it?, thank you very much in advance for your help.