Remove ChromeBrowserProvider::CreateSyncedWindowDelegatesGetter().

ios/chrome/browser/downstream_chromium_browser_provider.mm

Index: ios/chrome/browser/downstream_chromium_browser_provider.mm
diff --git a/ios/chrome/browser/downstream_chromium_browser_provider.mm b/ios/chrome/browser/downstream_chromium_browser_provider.mm
index 8e8d6502202e6a454557d50b7fd3cc3c0261ea2d..7a2608e76a7c4031b136747fc52af03d7cfa20b6 100644
--- a/ios/chrome/browser/downstream_chromium_browser_provider.mm
+++ b/ios/chrome/browser/downstream_chromium_browser_provider.mm
@@ -4,20 +4,6 @@
 
 #import "ios/chrome/browser/downstream_chromium_browser_provider.h"
 
-#import <UIKit/UIKit.h>
-
-#include <memory>
-#include <string>
-
-#include "base/memory/ptr_util.h"
-#include "ios/chrome/browser/tabs/tab_model_synced_window_delegate_getter.h"
-
 DownstreamChromiumBrowserProvider::DownstreamChromiumBrowserProvider() {}
 
 DownstreamChromiumBrowserProvider::~DownstreamChromiumBrowserProvider() {}
-
-std::unique_ptr<sync_sessions::SyncedWindowDelegatesGetter>
-DownstreamChromiumBrowserProvider::CreateSyncedWindowDelegatesGetter(
-    ios::ChromeBrowserState* browser_state) {
-  return base::MakeUnique<TabModelSyncedWindowDelegatesGetter>(browser_state);
-}