[analyzer] remove "auto-generated do not edit" comments

pkg/analyzer/lib/src/generated/utilities_general.dart

 // Copyright (c) 2014, 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 code was auto-generated, is not intended to be edited, and is subject to
-// significant change. Please see the README file for more information.
-
 library engine.utilities.general;
 
 import 'dart:profiler';
 
 /**
  * Jenkins hash function, optimized for small integers.
  * Borrowed from sdk/lib/math/jenkins_smi_hash.dart.
  */
 class JenkinsSmiHash {
   static int combine(int hash, int value) {
@@ skipping 130 matching lines @@
 
   makeCurrentWhile(f()) {
     PerformanceTag prevTag = makeCurrent();
     try {
       return f();
     } finally {
       prevTag.makeCurrent();
     }
   }
 }