Revert "Deprecate some debugger methods"

include/v8-debug.h

Index: include/v8-debug.h
diff --git a/include/v8-debug.h b/include/v8-debug.h
index e488aaa8891e707cd4cb61a5e48bca121e073095..f432de0be85f7d17a433fbc754a39265b4d1efc2 100755
--- a/include/v8-debug.h
+++ b/include/v8-debug.h
@@ -245,9 +245,8 @@ class EXPORT Debug {
   typedef void (*DebugMessageDispatchHandler)();
 
   // Set a C debug event listener.
-  V8_DEPRECATED(static bool SetDebugEventListener(
-      EventCallback that,
-      Handle<Value> data = Handle<Value>()));
+  static bool SetDebugEventListener(EventCallback that,
+                                    Handle<Value> data = Handle<Value>());
   static bool SetDebugEventListener2(EventCallback2 that,
                                      Handle<Value> data = Handle<Value>());
 
@@ -275,9 +274,8 @@ class EXPORT Debug {
 
   // Message based interface. The message protocol is JSON. NOTE the message
   // handler thread is not supported any more parameter must be false.
-  V8_DEPRECATED(static void SetMessageHandler(
-      MessageHandler handler,
-      bool message_handler_thread = false));
+  static void SetMessageHandler(MessageHandler handler,
+                                bool message_handler_thread = false);
   static void SetMessageHandler2(MessageHandler2 handler);
 
   // If no isolate is provided the default isolate is