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

components/omnibox/browser/base_search_provider.cc

Index: components/omnibox/browser/base_search_provider.cc
diff --git a/components/omnibox/browser/base_search_provider.cc b/components/omnibox/browser/base_search_provider.cc
index c6833f68fdd5b4ea01f55509d80a5707e50a3f66..0c1feb15addfdd08e465f7df20c7dda6f91a0e64 100644
--- a/components/omnibox/browser/base_search_provider.cc
+++ b/components/omnibox/browser/base_search_provider.cc
@@ -265,7 +265,6 @@ AutocompleteMatch BaseSearchProvider::CreateSearchSuggestion(
       new TemplateURLRef::SearchTermsArgs(suggestion.suggestion()));
   match.search_terms_args->original_query = input.text();
   match.search_terms_args->accepted_suggestion = accepted_suggestion;
-  match.search_terms_args->enable_omnibox_start_margin = true;
   match.search_terms_args->suggest_query_params =
       suggestion.suggest_query_params();
   match.search_terms_args->append_extra_query_params =
@@ -372,8 +371,6 @@ void BaseSearchProvider::AddMatchToMap(
       accepted_suggestion, ShouldAppendExtraParams(result));
   if (!match.destination_url.is_valid())
     return;
-  match.search_terms_args->bookmark_bar_pinned =
-      client_->BookmarkBarIsVisible();
   match.RecordAdditionalInfo(kRelevanceFromServerKey,
                              result.relevance_from_server() ? kTrue : kFalse);
   match.RecordAdditionalInfo(kShouldPrefetchKey,