Remove ChromeBrowserProvider::GetLiveTabContextProvider() method.

ios/public/provider/chrome/browser/chrome_browser_provider.h

Index: ios/public/provider/chrome/browser/chrome_browser_provider.h
diff --git a/ios/public/provider/chrome/browser/chrome_browser_provider.h b/ios/public/provider/chrome/browser/chrome_browser_provider.h
index b09c0fb7a7204cda3eeded4d8a961478bdac5926..5e9571880a496f12297c57cdbef175bdb13c6600 100644
--- a/ios/public/provider/chrome/browser/chrome_browser_provider.h
+++ b/ios/public/provider/chrome/browser/chrome_browser_provider.h
@@ -56,7 +56,6 @@ class ChromeIdentityService;
 class GeolocationUpdaterProvider;
 class SigninErrorProvider;
 class SigninResourcesProvider;
-class LiveTabContextProvider;
 
 // Setter and getter for the provider. The provider should be set early, before
 // any browser code is called.
@@ -91,8 +90,7 @@ class ChromeBrowserProvider {
       std::unique_ptr<ChromeIdentityService> service);
   // Returns an instance of a Chrome identity service.
   virtual ChromeIdentityService* GetChromeIdentityService();
-  // Returns an instance of a LiveTabContextProvider.
-  virtual LiveTabContextProvider* GetLiveTabContextProvider();
+  // Returns an instance of a GeolocationUpdaterProvider.
   virtual GeolocationUpdaterProvider* GetGeolocationUpdaterProvider();
   // Returns "enabled", "disabled", or "default".
   virtual std::string DataReductionProxyAvailability();