Remove ChromeBrowserProvider::GetLiveTabContextProvider() method.

ios/public/provider/chrome/browser/test_chrome_browser_provider.mm

Index: ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
diff --git a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
index 7b22cb33f655cccf8e5356a69f660567a8a8454b..dabe0ce0804cc71228f78992eb3bc1f49a21ff82 100644
--- a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
+++ b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
@@ -12,7 +12,6 @@
 #include "ios/public/provider/chrome/browser/distribution/test_app_distribution_provider.h"
 #include "ios/public/provider/chrome/browser/images/test_branded_image_provider.h"
 #include "ios/public/provider/chrome/browser/omaha/test_omaha_service_provider.h"
-#include "ios/public/provider/chrome/browser/sessions/test_live_tab_context_provider.h"
 #include "ios/public/provider/chrome/browser/sessions/test_synced_window_delegates_getter.h"
 #include "ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h"
 #include "ios/public/provider/chrome/browser/signin/test_signin_resources_provider.h"
@@ -28,8 +27,6 @@ TestChromeBrowserProvider::TestChromeBrowserProvider()
     : app_distribution_provider_(
           base::MakeUnique<TestAppDistributionProvider>()),
       branded_image_provider_(base::MakeUnique<TestBrandedImageProvider>()),
-      live_tab_context_provider_(
-          base::MakeUnique<TestLiveTabContextProvider>()),
       omaha_service_provider_(base::MakeUnique<TestOmahaServiceProvider>()),
       signin_resources_provider_(
           base::MakeUnique<TestSigninResourcesProvider>()),
@@ -63,10 +60,6 @@ ChromeIdentityService* TestChromeBrowserProvider::GetChromeIdentityService() {
   return chrome_identity_service_.get();
 }
 
-LiveTabContextProvider* TestChromeBrowserProvider::GetLiveTabContextProvider() {
-  return live_tab_context_provider_.get();
-}
-
 UITextField<TextFieldStyling>* TestChromeBrowserProvider::CreateStyledTextField(
     CGRect frame) const {
   return [[TestStyledTextField alloc] initWithFrame:frame];