ERP5Site_getAuthenticatedMemberPersonValue: Deprecate

And simplify.

bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/ERP5Site_getAuthenticatedMemberPersonValue.py

 """Find and returns Person object for current logged in user.
 Returns None if no corresponding person, for example when not using ERP5Security.ERP5UserManager.
 """
-portal = context.getPortalObject()
+from Products.ERP5Type.Log import log
 if user_name is None:
-  return portal.portal_membership.getAuthenticatedMember().getUserValue()
-user_path_set = {
-  x['path']
-  for x in portal.acl_users.searchUsers(exact_match=True, id=user_name)
-  if 'path' in x
-}
-if len(user_path_set) == 1:
-  user_path, = user_path_set
-  return portal.restrictedTraverse(user_path)
+  log('DEPRECATED: call context.getPortalObject().portal_membership.getAuthenticatedMember().getUserValue()')
+  return context.getPortalObject().portal_membership.getAuthenticatedMember().getUserValue()
+log('DEPRECATED: call context.Base_getUserValueByUserId(user_name)')
+return context.Base_getUserValueByUserId(user_name)