fix: don't override user defined MaxListeners

lib/web/fetch/request.js

@@ -28,7 +28,7 @@ const { webidl } = require('./webidl')
 const { URLSerializer } = require('./data-url')
 const { kConstruct } = require('../../core/symbols')
 const assert = require('node:assert')
-const { getMaxListeners, setMaxListeners, getEventListeners, defaultMaxListeners } = require('node:events')
+const { getMaxListeners, setMaxListeners, defaultMaxListeners } = require('node:events')
 
 const kAbortController = Symbol('abortController')
 
@@ -429,8 +429,6 @@ class Request {
           // This is only available in node >= v19.9.0
           if (typeof getMaxListeners === 'function' && getMaxListeners(signal) === defaultMaxListeners) {
             setMaxListeners(1500, signal)
-          } else if (getEventListeners(signal, 'abort').length >= defaultMaxListeners) {
-            setMaxListeners(1500, signal)
           }
         } catch {}
 

test/fetch/max-listeners.js

@@ -0,0 +1,13 @@
+const { setMaxListeners, getMaxListeners } = require('events')
+const { test } = require('node:test')
+const assert = require('node:assert')
+const { fetch } = require('../..')
+
+test('test max listeners', async (t) => {
+    const controller = new AbortController();
+    setMaxListeners(Infinity, controller.signal)
+    let url = URL.createObjectURL(new Blob())
+    for(let i=0;i<1600;i++)
+        fetch(url, { signal: controller.signal })
+    assert.strictEqual(getMaxListeners(controller.signal), Infinity);
+});