ash: Remove broken display notification suppression when settings is open

chrome/browser/ui/ash/system_tray_client.cc

Index: chrome/browser/ui/ash/system_tray_client.cc
diff --git a/chrome/browser/ui/ash/system_tray_client.cc b/chrome/browser/ui/ash/system_tray_client.cc
index 54b2a3661d1a15eb1c64236277c09d7caf2e441e..54a033961a2f0c45b1dc74eae0b0038ada671477 100644
--- a/chrome/browser/ui/ash/system_tray_client.cc
+++ b/chrome/browser/ui/ash/system_tray_client.cc
@@ -32,6 +32,7 @@ using chromeos::LoginState;
 
 namespace {
 
+const char kDisplaySettingsSubPageName[] = "display";
 const char kPaletteSettingsSubPageName[] = "stylus-overlay";
 
 SystemTrayClient* g_instance = nullptr;
@@ -43,11 +44,6 @@ void ShowSettingsSubPageForActiveUser(const std::string& sub_page) {
 
 }  // namespace
 
-// static
-const char SystemTrayClient::kDisplaySettingsSubPageName[] = "display";
-const char SystemTrayClient::kDisplayOverscanSettingsSubPageName[] =
-    "displayOverscan";
-
 SystemTrayClient::SystemTrayClient() {
   // If this observes clock setting changes before ash comes up the IPCs will
   // be queued on |system_tray_|.