src: remove unused variable in node_file.cc

PR-URL: #34317
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

src/node_file.cc

@@ -1645,7 +1645,7 @@ static void ReadDir(const FunctionCallbackInfo<Value>& args) {
     std::vector<Local<Value>> name_v;
     std::vector<Local<Value>> type_v;
 
-    for (int i = 0; ; i++) {
+    for (;;) {
       uv_dirent_t ent;
 
       r = uv_fs_scandir_next(&(req_wrap_sync.req), &ent);