Remove composer optimisations for laminas/laminas-zendframework-bridge

Problem/Motivation

We removed our dependency on laminas/laminas-zendframework-bridge some time ago (when we moved aggregator to contrib).
However we still have code for it in one of our composer scripts

see \Drupal\Core\Composer\Composer::preAutoloadDump

if ($repository->findPackage('laminas/laminas-zendframework-bridge', $constraint)) {
      $autoload['classmap'] = array_merge($autoload['classmap'], [
        $vendor_dir . '/laminas/laminas-zendframework-bridge/src/Autoloader.php',
        $vendor_dir . '/laminas/laminas-zendframework-bridge/src/RewriteRules.php',
      ]);
    }

Steps to reproduce

Proposed resolution

Remove it

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet