Support limiting editing patient demographic information based on privilege

limit the privileges of editing patient demographic information from patient dashboard for a given set of users. I tried to remove Edit patient from the privileges for these users but it didn't work. Where should I go to remove this button

see this discussion
https://talk.openmrs.org/t/privilege-to-edit-patient-demographic-information/11520

Steps to fix this would include:

create a new privilege (not sure if it goes in the Registration App module or the Reference Metadata module)
Add a requirePrivilege check in this file.
In Reference Demo Data and/or Reference Metadata make sure that this new privilege is given to the relevant roles.