Pepper: More interface_list cleanup.

ppapi/proxy/interface_list.h

Index: ppapi/proxy/interface_list.h
diff --git a/ppapi/proxy/interface_list.h b/ppapi/proxy/interface_list.h
index 9a6199414d6f6a3e8906231399f0cc0c56eb7dcf..27728f7f3d4cf6cd713f9395844861c20d529c2e 100644
--- a/ppapi/proxy/interface_list.h
+++ b/ppapi/proxy/interface_list.h
@@ -76,10 +76,6 @@ class InterfaceList {
   void AddPPB(const char* name, const void* iface, Permission permission);
   void AddPPP(const char* name, const void* iface);
 
-  // Old-style add functions. These should be removed when the rest of the
-  // proxies are converted over to using the new system.
-  void AddPPP(const InterfaceProxy::Info* info);
-
   PpapiPermissions permissions_;
 
   NameToInterfaceInfoMap name_to_browser_info_;