Remove a variety of no-longer-used query params.

chrome/browser/search_engines/ui_thread_search_terms_data.h

Index: chrome/browser/search_engines/ui_thread_search_terms_data.h
diff --git a/chrome/browser/search_engines/ui_thread_search_terms_data.h b/chrome/browser/search_engines/ui_thread_search_terms_data.h
index 51ebf1544ca4dc5b0f2aa969bb41c85219c011a3..e5912375842cb4ea0c5248d527a10c7a838c459d 100644
--- a/chrome/browser/search_engines/ui_thread_search_terms_data.h
+++ b/chrome/browser/search_engines/ui_thread_search_terms_data.h
@@ -27,11 +27,8 @@ class UIThreadSearchTermsData : public SearchTermsData {
   std::string GetSearchClient() const override;
   std::string GetSuggestClient() const override;
   std::string GetSuggestRequestIdentifier() const override;
-  bool IsShowingSearchTermsOnSearchResultsPages() const override;
   std::string InstantExtendedEnabledParam(bool for_search) const override;
   std::string ForceInstantResultsParam(bool for_prerender) const override;
-  int OmniboxStartMargin() const override;
-  std::string NTPIsThemedParam() const override;
   std::string GoogleImageSearchSource() const override;
   std::string GetAcceptLanguages() const override;