removed junk;

--- a/src/Pure/Isar/isar_document.ML	Thu Jan 15 00:44:19 2009 +0100
+++ b/src/Pure/Isar/isar_document.ML	Thu Jan 15 00:48:45 2009 +0100
@@ -176,9 +176,6 @@
 fun update_state tr state = Future.fork_deps [state] (fn () =>
   (case Future.join state of NONE => NONE | SOME st => Toplevel.run_command tr st));
 
-fun update_entry (id, state_id) entries =
-  Symtab.map_entry
-
 fun update_states old_document new_document =
   let
     val Document {entries = old_entries, ...} = old_document;