lib: drop fetch experimental warning

Signed-off-by: Matteo Collina <[email protected]>

Author: mcollina

lib/internal/process/pre_execution.js

@@ -236,7 +236,6 @@ function setupFetch() {
   }
 
   async function fetch(input, init = undefined) {
-    emitExperimentalWarning('The Fetch API');
     return lazyUndici().fetch(input, init);
   }
 

test/parallel/test-fetch.mjs

@@ -10,11 +10,6 @@ assert.strictEqual(typeof globalThis.Headers, 'function');
 assert.strictEqual(typeof globalThis.Request, 'function');
 assert.strictEqual(typeof globalThis.Response, 'function');
 
-common.expectWarning(
-  'ExperimentalWarning',
-  'The Fetch API is an experimental feature. This feature could change at any time'
-);
-
 const server = http.createServer((req, res) => {
   // TODO: Remove this once keep-alive behavior can be disabled from the client
   // side.