mash: Migrate ShowSetTimeDialog from SystemTrayDelegate to mojo

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 8dfda9900227ec4d2f6c367d63cd892ab2fad5b3..33fceb55c5c4238611dced031f1793f89f70d243 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -59,7 +59,6 @@
 #include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
 #include "chrome/browser/chromeos/profiles/multiprofiles_intro_dialog.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
-#include "chrome/browser/chromeos/set_time_dialog.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/ui/choose_mobile_network_dialog.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ -348,12 +347,6 @@ bool SystemTrayDelegateChromeOS::ShouldShowSettings() {
          !wm_shell->GetSessionStateDelegate()->IsInSecondaryLoginScreen();
 }
 
-void SystemTrayDelegateChromeOS::ShowSetTimeDialog() {
-  // TODO(mash): Move to SystemTrayClient.
-  SetTimeDialog::ShowDialogInContainer(
-      SystemTrayClient::GetDialogParentContainerId());
-}
-
 void SystemTrayDelegateChromeOS::ShowEnterpriseInfo() {
   // TODO(mash): Refactor out SessionStateDelegate and move to SystemTrayClient.
   ash::LoginStatus status = GetUserLoginStatus();