Enable speech input by default and remove unused code.

chrome/browser/renderer_host/browser_render_process_host.h

Index: chrome/browser/renderer_host/browser_render_process_host.h
diff --git a/chrome/browser/renderer_host/browser_render_process_host.h b/chrome/browser/renderer_host/browser_render_process_host.h
index 6ef691d68dc30dd73f39a0facd12fc706e776d63..e70263e5b5c9add867418d69276970fe12e307ad 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.h
+++ b/chrome/browser/renderer_host/browser_render_process_host.h
@@ -116,10 +116,6 @@ class BrowserRenderProcessHost : public RenderProcessHost,
   // functions to thre renderer process.
   void InitExtensions();
 
-  // Initialize support for speech input API. Informs the renderer if the API
-  // is enabled or not.
-  void InitSpeechInput();
-
   // Sends the renderer process a new set of user scripts.
   void SendUserScriptsUpdate(base::SharedMemory* shared_memory);