Revert "Add current rss and embedder name to Observatory"

runtime/observatory/lib/src/repositories/vm.dart

Index: runtime/observatory/lib/src/repositories/vm.dart
diff --git a/runtime/observatory/lib/src/repositories/vm.dart b/runtime/observatory/lib/src/repositories/vm.dart
deleted file mode 100644
index 514e3741a84051a1dfb85ea53040a41f96b7822f..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/repositories/vm.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2017, 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 repositories;
-
-class VMRepository implements M.VMRepository {
-  Future<M.VM> get(M.VMRef ref) async {
-    S.VM vm = ref as S.VM;
-    assert(vm != null);
-    await vm.reload();
-    return vm;
-  }
-}