Remove email required and validation on user-permissions

Would love to remove the email and the validation for each user.
The application I’m building will use a different way to identify the user which will not use an email address.
I know there’s an extensions folder for that, I did tried and successfully remove the email filed however the validation is still there.
Can anyone help with this? Thanks.

Perhaps is a goos feature to enables more flexibility to the developer and applications built using Strapi.