When you have no further use for a role, you can delete it. If you delete a role while it is assigned to someone, that person retains the permissions associated with the role. Check for and remove the role assignment before you delete the role.
More Information
About the predefined Compliance Accelerator roles
About the Compliance Accelerator permissions
Creating Compliance Accelerator roles
Editing the properties of Compliance Accelerator roles
Assigning Compliance Accelerator roles to employees or groups