Remove deprecated mappedBy.

Committed: https://code.google.com/p/dart/source/detail?r=18575
Reverted: http://code.google.com/p/dart/source/detail?r=18576

Review URL: https://codereview.chromium.org//12212213

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18579 260f80e4-7a28-3924-810f-c04153c831b5

tools/dom/src/CssClassSet.dart

@@ -46,8 +46,6 @@ abstract class CssClassSet implements Set<String> {
 
   Iterable map(f(String element)) => readClasses().map(f);
 
-  Iterable mappedBy(f(String element)) => readClasses().mappedBy(f);
-
   Iterable<String> where(bool f(String element)) => readClasses().where(f);
 
   Iterable expand(Iterable f(String element)) => readClasses.expand(f);

tools/dom/templates/html/impl/impl_Element.darttemplate

@@ -65,10 +65,6 @@ class _ChildrenElementList implements List {
     return IterableMixinWorkaround.mapList(this, f);
   }
 
-  List mappedBy(f(Element element)) {
-    return IterableMixinWorkaround.mappedByList(this, f);
-  }
-
   Iterable<Element> where(bool f(Element element)) {
     return IterableMixinWorkaround.where(this, f);
   }
@@ -290,10 +286,6 @@ class _FrozenElementList implements List {
     return IterableMixinWorkaround.mapList(this, f);
   }
 
-  List mappedBy(f(Element element)) {
-    return IterableMixinWorkaround.mappedByList(this, f);
-  }
-
   Iterable<Element> where(bool f(Element element)) {
     return IterableMixinWorkaround.where(this, f);
   }

tools/dom/templates/html/impl/impl_Node.darttemplate

@@ -145,10 +145,6 @@ $endif
     return IterableMixinWorkaround.mapList(this, f);
   }
 
-  List mappedBy(f(Node element)) {
-    return IterableMixinWorkaround.mappedByList(this, f);
-  }
-
   Iterable<Node> where(bool f(Node element)) {
     return IterableMixinWorkaround.where(this, f);
   }

tools/dom/templates/immutable_list_mixin.darttemplate

@@ -32,9 +32,6 @@ $endif
   Iterable map(f($E element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f($E element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<$E> where(bool f($E element)) =>
       IterableMixinWorkaround.where(this, f);