
dls:document-remove-permissions( $uri as xs:string, $permissions as item()* ) as empty-sequence()
This function removes the specified permissions from the named document.
dls-user role is required to run 
    this function, or the privilege:http://marklogic.com/xdmp/privileges/dls-user
    
  xquery version "1.0-ml";
  import module namespace dls = "http://marklogic.com/xdmp/dls" 
      at "/MarkLogic/dls.xqy";
  dls:document-remove-permissions(
                   "/foo/bar/baz.xml", 
                   (xdmp:permission("Developer", "read"),
                    xdmp:permission("Developer", "update")))
  
  (: Removes the specified permissions from the list of permissions for 
     the 'baz.xml' document. :)