doc: remove link to QUIC.md

PR-URL: #57729
Fixes: #57252
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: aduh95

doc/api/index.md

@@ -49,7 +49,6 @@
 * [Process](process.md)
 * [Punycode](punycode.md)
 * [Query strings](querystring.md)
-* [QUIC](quic.md)
 * [Readline](readline.md)
 * [REPL](repl.md)
 * [Report](report.md)