Revert "Add current rss and embedder name to Observatory"

runtime/observatory/lib/src/elements/memory/dashboard.dart

 // 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.
 
 /// This page is not directly reachable from the main Observatory ui.
 /// It is mainly mented to be used from editors as an integrated tool.
 ///
 /// This page mainly targeting developers and not VM experts, so concepts like
 /// old and new heap are abstracted away.
 ///
@@ skipping 23 matching lines @@
         NavNotifyElement.tag,
         MemoryGraphElement.tag,
         MemoryProfileElement.tag
       ]);
 
   RenderingScheduler<MemoryDashboardElement> _r;
 
   Stream<RenderedEvent<MemoryDashboardElement>> get onRendered => _r.onRendered;
 
   M.VMRef _vm;
-  M.VMRepository _vms;
   M.IsolateRepository _isolates;
   M.EditorRepository _editor;
   M.AllocationProfileRepository _allocations;
   M.EventRepository _events;
   M.NotificationRepository _notifications;
 
-  M.VMRef get vm => _vm;
+  M.VM get vm => _vm;
   M.NotificationRepository get notifications => _notifications;
 
   factory MemoryDashboardElement(
-      M.VMRef vm,
-      M.VMRepository vms,
+      M.VM vm,
       M.IsolateRepository isolates,
       M.EditorRepository editor,
       M.AllocationProfileRepository allocations,
       M.EventRepository events,
       M.NotificationRepository notifications,
       {RenderingQueue queue}) {
     assert(vm != null);
-    assert(vms != null);
     assert(isolates != null);
     assert(editor != null);
     assert(allocations != null);
     assert(events != null);
     assert(notifications != null);
     MemoryDashboardElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._vm = vm;
-    e._vms = vms;
     e._isolates = isolates;
     e._editor = editor;
     e._allocations = allocations;
     e._events = events;
     e._notifications = notifications;
     return e;
   }
 
   MemoryDashboardElement.created() : super.created();
 
   @override
   attached() {
     super.attached();
     _r.enable();
   }
 
   @override
   detached() {
     super.detached();
     _r.disable(notify: true);
     children = [];
   }
 
   M.IsolateRef _isolate;
 
   MemoryGraphElement _graph;
 
   void render() {
     if (_graph == null) {
-      _graph =
-          new MemoryGraphElement(vm, _vms, _isolates, _events, queue: _r.queue)
-            ..onIsolateSelected.listen(_onIsolateSelected);
+      _graph = new MemoryGraphElement(vm, _isolates, _events, queue: _r.queue)
+        ..onIsolateSelected.listen(_onIsolateSelected);
     }
     children = [
       navBar([new NavNotifyElement(_notifications, queue: _r.queue)]),
       new DivElement()
         ..classes = ['content-centered-big']
         ..children = [
           new HeadingElement.h2()..text = 'Memory Dashboard',
           new HRElement(),
           _graph,
           new HRElement(),
@@ skipping 42 matching lines @@
         profile
       ]);
     }
   }
 
   void _onIsolateSelected(IsolateSelectedEvent e) {
     _r.checkAndReact(_isolate, e.isolate);
     _isolate = e.isolate;
   }
 }