Removing group related classes
Removing group class configuration for FOS, removing references in AbstractFunctionalTest and User entity
Removing group related permission classes
Updating Permission entity to drop the reference to GroupPermissionValue
Removing GroupNotification classes as they are no longer required
Removing group related fixtures
Removing NotificationFactory::notifyGroup() method
Removing invalid use statements
Removing more references to groups
Removing PermissionBundle content that is no longer relevant
Removing reference to user groups in doc comment
Removing group events, group form related classes and group logic in user save process
Removing fetch for permissions manager which has been removed
Removing group event classes, group manager
Removing group related service definitions and routes
Removing references to groups in view templates
Removing some more group related classes
Cleaning up tests, removing group logic
Minor test change
Removing any logic in the PermissionEvaluator as this needs re-implementing with ROLE logic