Remove a bunch of dead code around WindowFeatures

third_party/WebKit/public/web/window_features.mojom

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module blink.mojom;
 
 struct WindowFeatures {
     float x;
     bool has_x = false;
 
     float y;
     bool has_y = false;
 
     float width;
     bool has_width = false;
 
     float height;
     bool has_height = false;
 
     bool menu_bar_visible = true;
     bool status_bar_visible = true;
     bool tool_bar_visible = true;
-    bool location_bar_visible = true;
     bool scrollbars_visible = true;
-    bool resizable = true;
-
-    bool fullscreen = false;
-    bool dialog = false;
-
-    // NOTE: WebWindowFeatures::additionalFeatures is not mirrored by this
-    // mojom struct as it's never used by the browser and therefore doesn't need
-    // to be sent.
 };