Remove irrelevant TODOs from summary code.

pkg/analyzer/lib/src/summary/idl.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This file is an "idl" style description of the summary format.  It
  * contains abstract classes which declare the interface for reading data from
  * summaries.  It is parsed and transformed into code that implements the
  * summary format.
  *
@@ skipping 30 matching lines @@
  */
 library analyzer.tool.summary.idl;
 
 import 'base.dart' as base;
 import 'format.dart' as generated;
 
 /**
  * Annotation describing information which is not part of Dart semantics; in
  * other words, if this information (or any information it refers to) changes,
  * static analysis and runtime behavior of the library are unaffected.
- *
- * TODO(paulberry): some informative information is currently missing from the
- * summary format.
  */
 const informative = null;
 
 /**
- * Annotation describing information which is not part of the public API to a
- * library; in other words, if this information (or any information it refers
- * to) changes, libraries outside this one are unaffected.
- *
- * TODO(paulberry): currently the summary format does not contain private
- * information.
- */
-const private = null;
-
-/**
  * Annotation describing a class which can be the top level object in an
  * encoded summary.
  */
 const topLevel = null;
 
 /**
  * Summary information about a reference to a an entity such as a type, top
  * level executable, or executable within a class.
  */
 abstract class EntityRef extends base.SummaryClass {
@@ skipping 1597 matching lines @@
    *
    * Non-propagable variables have a [propagatedTypeSlot] of zero.
    */
   int get propagatedTypeSlot;
 
   /**
    * Declared type of the variable.  Absent if the type is implicit.
    */
   EntityRef get type;
 }