Unable to remove 'Title' from Person Name Style

Summary:

Content (required):

We want to show the following fields in Recruit (Candidate creation and Job Application Submission)

Last Name | First Name | Suffix | Middle Names | Known As

But when we are trying to remove Title from Person Name Style - Universal it is greyed out. Please suggest how we can achieve this requirement.

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):