Revert "Towards compiling Hello World!" and "Compile and run Hello World!"

pkg/compiler/lib/src/js_backend/element_strategy.dart

Index: pkg/compiler/lib/src/js_backend/element_strategy.dart
diff --git a/pkg/compiler/lib/src/js_backend/element_strategy.dart b/pkg/compiler/lib/src/js_backend/element_strategy.dart
index b58b3c446df1850d9ed78d7bb953334937658850..dbc044cda9046f4ff01d6776f317c36047e49804 100644
--- a/pkg/compiler/lib/src/js_backend/element_strategy.dart
+++ b/pkg/compiler/lib/src/js_backend/element_strategy.dart
@@ -51,12 +51,8 @@ class ElementBackendStrategy implements BackendStrategy {
       NativeBasicData nativeBasicData,
       ClosedWorld closedWorld,
       SelectorConstraintsStrategy selectorConstraintsStrategy) {
-    return new ElementCodegenWorldBuilderImpl(
-        _compiler.backend.constants,
-        closedWorld.elementEnvironment,
-        nativeBasicData,
-        closedWorld,
-        selectorConstraintsStrategy);
+    return new ElementCodegenWorldBuilderImpl(closedWorld.elementEnvironment,
+        nativeBasicData, closedWorld, selectorConstraintsStrategy);
   }
 
   @override
@@ -159,7 +155,7 @@ class ElementCodegenWorkItem extends CodegenWorkItem {
   MemberElement get element => resolvedAst.element;
 
   WorldImpact run() {
-    registry = new CodegenRegistry(_closedWorld.elementEnvironment, element);
+    registry = new CodegenRegistry(element);
     return _backend.codegen(this, _closedWorld);
   }