test: remove unused uncaughtException handler

This has been unused since cbc3ef6.

Refs: #23053

PR-URL: #25641
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

Author: addaleax

test/pseudo-tty/test-tty-stdout-end.js

@@ -1,10 +1,4 @@
 'use strict';
-const common = require('../common');
-
-process.on('uncaughtException', common.expectsError({
-  code: 'ERR_STDOUT_CLOSE',
-  type: Error,
-  message: 'process.stdout cannot be closed'
-}));
+require('../common');
 
 process.stdout.end();