Revert "Add a crash for debugging when we get into a bad state."

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
index c174531b37b36cdb883ef98afb4f88bf143e79e6..1d3cbd7f8773b6c052e5c2115c3bec5ea79338c5 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
@@ -259,10 +259,6 @@ class VIEWS_EXPORT DesktopWindowTreeHostX11
   // Is the window mapped to the screen?
   bool window_mapped_;
 
-  // Keeps track of whether we have ever mapped/withdrawn this
-  // window. Debugging information in trying to track down crbug.com/381732.
-  bool x_map_window_was_called_ = false;
-
   // The bounds of |xwindow_|.
   gfx::Rect bounds_in_pixels_;