Remove last vestiges of removeAll from typed lists.

sdk/lib/_collection_dev/list.dart

 // Copyright (c) 2013, 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.
 
 part of dart._collection.dev;
 
 /**
  * Mixin that throws on the length changing operations of [List].
  *
  * Intended to mix-in on top of [ListMixin] for fixed-length lists.
@@ skipping 107 matching lines @@
   void addAll(Iterable<E> iterable) {
     throw new UnsupportedError(
         "Cannot add to an unmodifiable list");
   }
 
   bool remove(Object element) {
     throw new UnsupportedError(
         "Cannot remove from an unmodifiable list");
   }
 
-  void removeAll(Iterable elements) {
-    throw new UnsupportedError(
-        "Cannot remove from an unmodifiable list");
-  }
-
-  void retainAll(Iterable elements) {
-    throw new UnsupportedError(
-        "Cannot remove from an unmodifiable list");
-  }
-
   void removeWhere(bool test(E element)) {
     throw new UnsupportedError(
         "Cannot remove from an unmodifiable list");
   }
 
   void retainWhere(bool test(E element)) {
     throw new UnsupportedError(
         "Cannot remove from an unmodifiable list");
   }
 
@@ skipping 116 matching lines @@
 }
 
 class ReversedListIterable<E> extends ListIterable<E> {
   Iterable<E> _source;
   ReversedListIterable(this._source);
 
   int get length => _source.length;
 
   E elementAt(int index) => _source.elementAt(_source.length - 1 - index);
 }