remove old way of collecting dependencies for dump-info

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

Index: pkg/compiler/lib/src/js_backend/backend.dart
diff --git a/pkg/compiler/lib/src/js_backend/backend.dart b/pkg/compiler/lib/src/js_backend/backend.dart
index c881cb9c29b2a2a3e0a705c2709daa2180f1173a..d9f22346cbd3ddffdedccb724c768210b581e810 100644
--- a/pkg/compiler/lib/src/js_backend/backend.dart
+++ b/pkg/compiler/lib/src/js_backend/backend.dart
@@ -1656,10 +1656,6 @@ class JavaScriptBackend extends Target {
       } else if (compiler.commonElements.isFunctionApplyMethod(element)) {
         hasFunctionApplySupport = true;
       }
-    } else {
-      // TODO(sigmund): add other missing dependencies (internals, selectors
-      // enqueued after allocations).
-      compiler.dumpInfoTask.registerDependency(element);
     }
     return worldImpact;
   }