Remove setVoiceSearchSupported part of EmbeddedSearch SearchBox API.

chrome/browser/ui/browser_commands.cc

Index: chrome/browser/ui/browser_commands.cc
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc
index 12f21b3084b62654b2367e199b06eecc95a17cfc..8b7e06b7793dcbcbc832c61c882221cc160a5e3d 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -1131,15 +1131,6 @@ void OpenUpdateChromeDialog(Browser* browser) {
   }
 }
 
-void ToggleSpeechInput(Browser* browser) {
-  SearchTabHelper* search_tab_helper =
-      SearchTabHelper::FromWebContents(
-          browser->tab_strip_model()->GetActiveWebContents());
-  // |search_tab_helper| can be null in unit tests.
-  if (search_tab_helper)
-    search_tab_helper->ToggleVoiceSearch();
-}
-
 void DistillCurrentPage(Browser* browser) {
   DistillCurrentPageAndView(browser->tab_strip_model()->GetActiveWebContents());
 }