Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/browser/ui/search/search_tab_helper.cc

Index: chrome/browser/ui/search/search_tab_helper.cc
diff --git a/chrome/browser/ui/search/search_tab_helper.cc b/chrome/browser/ui/search/search_tab_helper.cc
index b90872377821f778acb68b52b954ad61ec98f969..5e1528fa080b33497858c14647865f76eeed52d6 100644
--- a/chrome/browser/ui/search/search_tab_helper.cc
+++ b/chrome/browser/ui/search/search_tab_helper.cc
@@ -371,7 +371,6 @@ void SearchTabHelper::NavigationEntryCommitted(
   }
 
   model_.SetInstantSupportState(INSTANT_SUPPORT_UNKNOWN);
-  model_.SetVoiceSearchSupported(false);
   search::SetInstantSupportStateInNavigationEntry(model_.instant_support(),
                                                   entry);
 
@@ -383,10 +382,6 @@ void SearchTabHelper::OnInstantSupportDetermined(bool supports_instant) {
   InstantSupportChanged(supports_instant);
 }
 
-void SearchTabHelper::OnSetVoiceSearchSupport(bool supports_voice_search) {
-  model_.SetVoiceSearchSupported(supports_voice_search);
-}
-
 void SearchTabHelper::ThemeInfoChanged(const ThemeBackgroundInfo& theme_info) {
   ipc_router_.SendThemeBackgroundInfo(theme_info);
 }