Revert "MD History: promote menu button to show clear browsing data in narrow mode"

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 870bcc9dedfc6f4b9bff36933c92089cb2d650b1..a409a3853765fb7043f9b6e3730332ec0ce1abf5 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -241,10 +241,6 @@
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
 #endif
 
-#if !defined(OS_ANDROID) && !defined(OS_IOS)
-#include "chrome/browser/ui/webui/md_history_ui.cc"
-#endif
-
 namespace {
 
 #if defined(OS_WIN)
@@ -624,10 +620,6 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   ash::launcher::RegisterChromeLauncherUserPrefs(registry);
 #endif
 
-#if !defined(OS_ANDROID) && !defined(OS_IOS)
-  MdHistoryUI::RegisterProfilePrefs(registry);
-#endif
-
   // Preferences registered only for migration (clearing or moving to a new key)
   // go here.