Optimize startup time of notification code by removing unused code.

ui/message_center/notifier_settings.cc

Index: ui/message_center/notifier_settings.cc
diff --git a/ui/message_center/notifier_settings.cc b/ui/message_center/notifier_settings.cc
index f5e9c012b5d7da209279b8c03df226c303d27777..e7099fd55cfd9d00e7d0a5321634fdc212fa271f 100644
--- a/ui/message_center/notifier_settings.cc
+++ b/ui/message_center/notifier_settings.cc
@@ -63,10 +63,9 @@ Notifier::Notifier(const NotifierId& notifier_id,
 Notifier::~Notifier() {
 }
 
-NotifierGroup::NotifierGroup(const gfx::Image& icon,
-                             const base::string16& name,
+NotifierGroup::NotifierGroup(const base::string16& name,
                              const base::string16& login_info)
-    : icon(icon), name(name), login_info(login_info) {}
+    : name(name), login_info(login_info) {}
 
 NotifierGroup::~NotifierGroup() {}