Revert "Register super field set explicitly in the universe."

pkg/compiler/lib/src/ssa/codegen.dart

 // Copyright (c) 2012, 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 ssa;
 
 class SsaCodeGeneratorTask extends CompilerTask {
 
   final JavaScriptBackend backend;
   final SourceInformationStrategy sourceInformationFactory;
@@ skipping 1733 matching lines @@
     ClassElement superClass = superElement.enclosingClass;
     if (superElement.isField) {
       js.Name fieldName =
           backend.namer.instanceFieldPropertyName(superElement);
       use(node.inputs[0]);
       js.PropertyAccess access =
           new js.PropertyAccess(pop(), fieldName)
               .withSourceInformation(node.sourceInformation);
       if (node.isSetter) {
         registry.registerStaticUse(
-            superElement.isSetter
-                ? new StaticUse.superSetterSet(superElement)
-                : new StaticUse.superFieldSet(superElement));
+            new StaticUse.superSet(superElement));
         use(node.value);
         push(new js.Assignment(access, pop())
             .withSourceInformation(node.sourceInformation));
       } else {
         registry.registerStaticUse(new StaticUse.superGet(superElement));
         push(access);
       }
     } else {
       Selector selector = node.selector;
       if (!backend.maybeRegisterAliasedSuperMember(superElement, selector)) {
@@ skipping 1144 matching lines @@
         new StaticUse.staticInvoke(helper,
             new CallStructure.unnamed(argumentCount)));
     return backend.emitter.staticFunctionAccess(helper);
   }
 
   @override
   void visitRef(HRef node) {
     visit(node.value);
   }
 }