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### Issue Details
BrowserWindow method `removeMenu()` is not working on v7.1.1. The only change made was upgrading Electron version.
https://electronjs.org/docs/api/browser-window#winremovemenu-linux-windows

* **Electron Version:**
  * 7.1.1
* **Operating System:**
  * Windows 10 (1903)
* **Last Known Working Electron version:**
  * v6.0.3

### Expected Behavior
Menu Bar not visible.<!-- A clear and concise description of what you expected to happen. -->

### Actual Behavior
Menu Bar is visible.<!-- A clear and concise description of what actually happened. -->

### To Reproduce
For me, just update Electron version.

### Screenshots
With version 7.1.1:
![image](https://user-images.githubusercontent.com/11201504/68656003-c5d5e880-050f-11ea-8d22-dfd58d166762.png)

With version 6.0.3:
![image](https://user-images.githubusercontent.com/11201504/68656185-1baa9080-0510-11ea-9033-bec7554f4b40.png)

shell/browser/native_window_views.cc
params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
  params.bounds = bounds;
  params.delegate = this;
  params.type = views::Widget::InitParams::TYPE_WINDOW;
  params.remove_standard_frame = !has_frame();
  if (transparent())
    params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
  
  
  if (transparent() && !has_frame())
    params.shadow_type = views::Widget::InitParams::ShadowType::kNone;
  bool focusable;
  if (options.Get(options::kFocusable, &focusable) && !focusable)
    params.activatable = views::Widget::InitParams::ACTIVATABLE_NO;
#if defined(OS_WIN)
  if (parent)
    params.parent = parent->GetNativeWindow();
  params.native_widget = new AtomDesktopNativeWidgetAura(this);
#elif defined(USE_X11)
  std::string name = Browser::Get()->GetName();
  
  params.wm_role_name = "browser-window";
  
  params.wm_class_name = base::ToLowerASCII(name);
  params.wm_class_class = name;
#endif
  widget()->Init(std::move(params));
  bool fullscreen = false;
  options.Get(options::kFullscreen, &fullscreen);
  std::string window_type;