[Remote suggestions] Clean up variation params in the fetcher.

components/ntp_snippets/remote/remote_suggestions_fetcher.h

Index: components/ntp_snippets/remote/remote_suggestions_fetcher.h
diff --git a/components/ntp_snippets/remote/remote_suggestions_fetcher.h b/components/ntp_snippets/remote/remote_suggestions_fetcher.h
index 84fc50b2fc376e5b918320e64c7255f77f0a3c63..90ebbacea0b04de8f57c251d3899e7790a468171 100644
--- a/components/ntp_snippets/remote/remote_suggestions_fetcher.h
+++ b/components/ntp_snippets/remote/remote_suggestions_fetcher.h
@@ -95,18 +95,12 @@ class RemoteSuggestionsFetcher : public OAuth2TokenService::Consumer,
   void FetchSnippets(const RequestParams& params,
                      SnippetsAvailableCallback callback);
 
-  std::string PersonalizationModeString() const;
-
   // Debug string representing the status/result of the last fetch attempt.
   const std::string& last_status() const { return last_status_; }
 
   // Returns the last JSON fetched from the server.
   const std::string& last_json() const { return last_fetch_json_; }
 
-  // Returns the personalization setting of the fetcher as used in tests.
-  // TODO(fhorschig): Reconsider these tests and remove this getter.
-  Personalization personalization() const { return personalization_; }
-
   // Returns the URL endpoint used by the fetcher.
   const GURL& fetch_url() const { return fetch_url_; }
 
@@ -168,9 +162,6 @@ class RemoteSuggestionsFetcher : public OAuth2TokenService::Consumer,
 
   bool DemandQuotaForRequest(bool interactive_request);
 
-  // Does the fetcher use authentication to get personalized results?
-  bool NeedsAuthentication() const;
-
   // Authentication for signed-in users.
   SigninManagerBase* signin_manager_;
   OAuth2TokenService* token_service_;
@@ -201,9 +192,6 @@ class RemoteSuggestionsFetcher : public OAuth2TokenService::Consumer,
   // API key to use for non-authenticated requests.
   const std::string api_key_;
 
-  // The variant of the fetching to use, loaded from variation parameters.
-  Personalization personalization_;
-
   // Allow for an injectable tick clock for testing.
   std::unique_ptr<base::TickClock> tick_clock_;