src: remove unused includes from node_contextify.h

PR-URL: #20670
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: danbev

src/node_contextify.h

@@ -2,8 +2,6 @@
 #define SRC_NODE_CONTEXTIFY_H_
 
 #include "node_internals.h"
-#include "node_watchdog.h"
-#include "base_object-inl.h"
 #include "node_context_data.h"
 
 namespace node {