src: remove JSONParser

This is now unused after
https://redirect.github.com/nodejs/node/pull/59473 and
and https://redirect.github.com/nodejs/node/pull/59323

PR-URL: #59619
Fixes: #59288
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Shelley Vohr <shelley.vohr@gmail.com>
Reviewed-By: Daniel Lemire <daniel@lemire.me>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ethan Arrowood <ethan@arrowood.dev>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>

Author: joyeecheung

node.gyp

@@ -96,8 +96,6 @@
       'src/js_stream.cc',
       'src/json_utils.cc',
       'src/js_udp_wrap.cc',
-      'src/json_parser.h',
-      'src/json_parser.cc',
       'src/module_wrap.cc',
       'src/node.cc',
       'src/node_api.cc',