Revert "build(docs-infra): use local version of Zone.js when testing against local packages (#35780)" (#35857)

This reverts commit 7d832ae1001b6264bb7124086089e9e69c10c9b6; breaks CI
with error `Concurrent upstream jobs persisted the same file(s) into the workspace:`

PR Close #35857

scripts/build/build-ivy-npm-packages.js

@@ -9,13 +9,8 @@
 
 'use strict';
 
-const {buildZoneJsPackage} = require('./zone-js-builder');
 const {buildTargetPackages} = require('./package-builder');
 
 
 // Build the ivy packages into `dist/packages-dist-ivy-aot/`.
 buildTargetPackages('dist/packages-dist-ivy-aot', true, 'Ivy AOT');
-
-// Build the `zone.js` npm package into `dist/zone.js-dist/`, because it might be needed by other
-// scripts/tests.
-buildZoneJsPackage();