Fixes mash

ash/mus/bridge/wm_shell_mus.cc

Index: ash/mus/bridge/wm_shell_mus.cc
diff --git a/ash/mus/bridge/wm_shell_mus.cc b/ash/mus/bridge/wm_shell_mus.cc
index e4ed015d8a85ae7d404a7f2f6a8b998117d1c459..e35fe35e8c34d51a8d77845bfe3c8ce4d607bee4 100644
--- a/ash/mus/bridge/wm_shell_mus.cc
+++ b/ash/mus/bridge/wm_shell_mus.cc
@@ -97,8 +97,6 @@ WmShellMus::WmShellMus(::mus::WindowTreeClient* client)
   client_->AddObserver(this);
   WmShell::Set(this);
 
-  CreateMaximizeModeController();
-
   CreateMruWindowTracker();
 
   accessibility_delegate_.reset(new DefaultAccessibilityDelegate);
@@ -108,9 +106,6 @@ WmShellMus::WmShellMus(::mus::WindowTreeClient* client)
 WmShellMus::~WmShellMus() {
   // This order mirrors that of Shell.
 
-  // Destroy maximize mode controller early on since it has some observers which
-  // need to be removed.
-  DeleteMaximizeModeController();
   DeleteSystemTrayDelegate();
   DeleteWindowSelectorController();
   DeleteMruWindowTracker();