Remove unused copies of EarlyZygoteLaunch()

content/browser/ppapi_plugin_process_host.h

Index: content/browser/ppapi_plugin_process_host.h
diff --git a/content/browser/ppapi_plugin_process_host.h b/content/browser/ppapi_plugin_process_host.h
index b769e4fb95457b70d21c4fb1f70b284e5baae423..61ed6d35d5b8ebcabba1b8fe90068b3bc244cd8d 100644
--- a/content/browser/ppapi_plugin_process_host.h
+++ b/content/browser/ppapi_plugin_process_host.h
@@ -119,11 +119,6 @@ class PpapiPluginProcessHost : public BrowserChildProcessHostDelegate,
     return profile_data_directory_;
   }
 
-#if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
-  // Launch the zygote early in the browser startup.
-  static void EarlyZygoteLaunch();
-#endif  // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
-
   // The client pointer must remain valid until its callback is issued.
 
  private: