[Most Visited] Removing Most Visited Tiles experiment code, which is obsolete.

chrome/browser/ui/search/search_tab_helper.cc

Index: chrome/browser/ui/search/search_tab_helper.cc
diff --git a/chrome/browser/ui/search/search_tab_helper.cc b/chrome/browser/ui/search/search_tab_helper.cc
index 2071396b4812a19312f03f65820f297ce966f40e..178765367654ace2b1a8a30ff9d7983a54af97a5 100644
--- a/chrome/browser/ui/search/search_tab_helper.cc
+++ b/chrome/browser/ui/search/search_tab_helper.cc
@@ -11,7 +11,6 @@
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/history/most_visited_tiles_experiment.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/instant_service.h"
 #include "chrome/browser/search/instant_service_factory.h"
@@ -419,27 +418,13 @@ void SearchTabHelper::ThemeInfoChanged(const ThemeBackgroundInfo& theme_info) {
 
 void SearchTabHelper::MostVisitedItemsChanged(
     const std::vector<InstantMostVisitedItem>& items) {
-  std::vector<InstantMostVisitedItem> items_copy(items);
-  MaybeRemoveMostVisitedItems(&items_copy);
-  ipc_router_.SendMostVisitedItems(items_copy);
+  ipc_router_.SendMostVisitedItems(items);
 }
 
 void SearchTabHelper::OmniboxStartMarginChanged(int omnibox_start_margin) {
   ipc_router_.SetOmniboxStartMargin(omnibox_start_margin);
 }
 
-void SearchTabHelper::MaybeRemoveMostVisitedItems(
-    std::vector<InstantMostVisitedItem>* items) {
-  if (!delegate_)
-    return;
-
-  if (!history::MostVisitedTilesExperiment::IsDontShowOpenURLsEnabled())
-    return;
-
-  history::MostVisitedTilesExperiment::RemoveItemsMatchingOpenTabs(
-      delegate_->GetOpenUrls(), items);
-}
-
 void SearchTabHelper::FocusOmnibox(OmniboxFocusState state) {
 // TODO(kmadhusu): Move platform specific code from here and get rid of #ifdef.
 #if !defined(OS_ANDROID)