chore: remove generate_test tool for now - it adds no value (#675)

utils/update-readme.js

@@ -33,7 +33,6 @@ import pdfTools from '../lib/tools/pdf.js';
 import snapshotTools from '../lib/tools/snapshot.js';
 import tabsTools from '../lib/tools/tabs.js';
 import screenshotTools from '../lib/tools/screenshot.js';
-import testTools from '../lib/tools/testing.js';
 import visionTools from '../lib/tools/vision.js';
 import waitTools from '../lib/tools/wait.js';
 import { execSync } from 'node:child_process';
@@ -62,9 +61,6 @@ const categories = {
   'Tabs': [
     ...tabsTools(true),
   ],
-  'Testing': [
-    ...testTools,
-  ],
   'Vision mode': [
     ...visionTools,
     ...keyboardTools(),