Revert "Add runtime_data.dart to the whitelist of files with unused members." and "Emit declaration…

sdk/lib/_internal/compiler/implementation/enqueue.dart

Index: sdk/lib/_internal/compiler/implementation/enqueue.dart
diff --git a/sdk/lib/_internal/compiler/implementation/enqueue.dart b/sdk/lib/_internal/compiler/implementation/enqueue.dart
index 7e98315b5233dfafc8552bfaacb4661e58dc05ec..796fb92fe5325ac452fc2f7412613d8bd882b602 100644
--- a/sdk/lib/_internal/compiler/implementation/enqueue.dart
+++ b/sdk/lib/_internal/compiler/implementation/enqueue.dart
@@ -36,9 +36,6 @@ class EnqueueTask extends CompilerTask {
              link = link.tail) {
           addMemberByName(link.head.element);
         }
-      } else if (element.isTypedef) {
-       TypedefElement typedef = element;
-       typedef.ensureResolved(compiler);
       }
       allElementsByName[name] = allElementsByName.putIfAbsent(
           name, () => const Link<Element>()).prepend(element);